| Metric | Dec 10, 2024 FY25 Q3 | Mar 13, 2025 FY25 Q4 | Jun 6, 2025 FY26 Q1 | Sep 4, 2025 FY26 Q2 | Dec 4, 2025 FY26 Q3 | Mar 12, 2026 FY26 Q4 | Jun 5, 2026 FY27 Q1 | Sep 1, 2026 FY27 Q2 |
|---|---|---|---|---|---|---|---|---|
| For FY2028 | ||||||||
| Run-rate cost savings | — | — | — | — | — | New“$25 million” | — | — |
| For FY2027 | ||||||||
| Net sales | — | — | — | — | — | New“approximately $2.71 billion” | Reiterated“approximately $2.71 billion” | Reiterated“approximately $2.71 billion” |
| Net sales | — | — | — | — | — | — | — | New“approximately $870.0 million” |
| Net sales | — | — | — | — | — | — | New“approximately $570.0 million” | — |
| Net sales | — | — | — | — | — | New“approximately $530.0 million” | — | — |
| Net sales loss from Calvin Klein and Tommy Hilfiger products | — | — | — | — | — | — | New“loss of approximately $470 million of sales” | — |
| Adjusted EBITDA | — | — | — | — | — | New“between $158.0 million and $162.0 million” | Raised“between $178.0 million and $182.0 million” | Lowered“between $174.0 million and $178.0 million” |
| Adjusted EBITDA, as defined | — | — | — | — | — | — | New“$ 178,000 - 182,000” | Lowered“$174,000 - 178,000” |
| Adjusted EBITDA, as defined | — | — | — | — | — | New“158,000 - 162,000” | — | — |
| Diluted earnings per share | — | — | — | — | — | New“between $2.00 and $2.10” | Raised“between $3.85 and $3.95” | Raised“between $4.10 and $4.20” |
| Diluted earnings per share | — | — | — | — | — | — | — | New“between $1.35 and $1.45” |
| Diluted earnings per share | — | — | — | — | — | — | New“between $0.15 and $0.25” | — |
| Earnings per share | — | — | — | — | — | New“between $(0.40) and $(0.30)” | — | — |
| GAAP diluted net income (loss) attributable to G-III Apparel Group, Ltd. per common share | — | — | — | — | — | New“(0.40) - (0.30)” | — | — |
| GAAP diluted net income (loss) attributable to G-III Apparel Group, Ltd. per common share | — | — | — | — | — | New“2.00 - 2.10” | — | — |
| GAAP diluted net income per common share | — | — | — | — | — | — | New“$ 3.85 - 3.95” | Raised“$4.10 - 4.20” |
| GAAP diluted net income per common share | — | — | — | — | — | — | — | New“$1.35 - 1.45” |
| GAAP diluted net income per common share | — | — | — | — | — | — | New“$ 0.15 - 0.25” | — |
| GAAP net income (loss) attributable to G-III Apparel Group, Ltd. | — | — | — | — | — | New“(18,000) - (13,000)” | — | — |
| GAAP net income (loss) attributable to G-III Apparel Group, Ltd. | — | — | — | — | — | New“88,000 - 92,000” | — | — |
| Gross margin | — | — | — | — | — | New“driving gross margin expansion” | — | — |
| Marc Jacobs acquisition earnings impact | — | — | — | — | — | — | — | New“slightly dilutive” |
| Net income | — | — | — | — | — | New“between $88.0 million and $92.0 million” | Raised“between $171.0 million and $175.0 million” | Raised“between $181.0 million and $185.0 million” |
| Net income | — | — | — | — | — | — | — | New“between $59.0 million and $64.0 million” |
| Net income | — | — | — | — | — | — | New“between $7.0 million and $11.0 million” | — |
| Non-GAAP diluted earnings per share | — | — | — | — | — | New“between $2.00 and $2.10” | Raised“between $2.15 and $2.25” | Raised“between $2.20 and $2.30” |
| Non-GAAP diluted earnings per share | — | — | — | — | — | — | New“between $0.15 and $0.25” | — |
| Non-GAAP diluted net income (loss) attributable to G-III Apparel Group, Ltd. per common share, as defined | — | — | — | — | — | New“(0.40) - (0.30)” | — | — |
| Non-GAAP diluted net income (loss) attributable to G-III Apparel Group, Ltd. per common share, as defined | — | — | — | — | — | New“2.00 - 2.10” | — | — |
| Non-GAAP diluted net income per common share, as defined | — | — | — | — | — | — | New“$ 2.15 - 2.25” | Raised“$2.20 - 2.30” |
| Non-GAAP diluted net income per common share, as defined | — | — | — | — | — | — | — | New“$1.35 - 1.45” |
| Non-GAAP diluted net income per common share, as defined | — | — | — | — | — | — | New“$ 0.15 - 0.25” | — |
| Non-GAAP net income | — | — | — | — | — | New“between $88.0 million and $92.0 million” | Raised“between $95.0 million and $99.0 million” | Raised“between $97.0 million and $101.0 million” |
| Non-GAAP net income | — | — | — | — | — | — | New“between $7.0 million and $11.0 million” | — |
| Non-GAAP net income (loss) attributable to G-III Apparel Group, Ltd., as defined | — | — | — | — | — | New“(18,000) - (13,000)” | — | — |
| Non-GAAP net income (loss) attributable to G-III Apparel Group, Ltd., as defined | — | — | — | — | — | New“88,000 - 92,000” | — | — |
| Non-GAAP net income, as defined | — | — | — | — | — | — | New“$ 95,000 - 99,000” | Raised“$97,000 - 101,000” |
| Non-GAAP net income, as defined | — | — | — | — | — | — | — | New“$59,000 - 64,000” |
| Non-GAAP net income, as defined | — | — | — | — | — | — | New“$ 7,000 - 11,000” | — |
| Depreciation and amortization | — | — | — | — | — | New“33,700” | Raised“36,500” | — |
| Go-forward portfolio growth | — | — | — | — | — | New“high-single digit growth” | — | — |
| Income tax expense | — | — | — | — | — | New“38,300” | Raised“71,781” | — |
| Interest and financing charges, net | — | — | — | — | — | New“(2,000)” | Reiterated“(2,000)” | — |
| Net interest income | — | — | — | — | — | New“approximately $2.0 million” | Reiterated“approximately $2.0 million” | — |
| Net interest income (GAAP) | — | — | — | — | — | — | — | New“approximately $8.0 million for GAAP purposes” |
| Net interest income (non-GAAP) | — | — | — | — | — | — | — | New“$5.0 million for non-GAAP purposes” |
| Net loss | — | — | — | — | — | New“between $(18.0) million and $(13.0) million” | — | — |
| Tax rate | — | — | — | — | — | New“30.0%” | — | — |
| Tax rate (GAAP) | — | — | — | — | — | — | — | New“approximately 25.2% for GAAP purposes” |
| Tax rate (non-GAAP) | — | — | — | — | — | — | — | New“32.2% for non-GAAP purposes” |
| Tax rate for GAAP purposes | — | — | — | — | — | — | New“approximately 30.0%” | — |
| Tax rate for non-GAAP purposes | — | — | — | — | — | — | New“33.5%” | — |
| For FY2026 | ||||||||
| Net sales | — | New“approximately $3.14 billion” | Reiterated“approximately $3.14 billion” | Lowered“approximately $3.02 billion” | Lowered“approximately $2.98 billion” | — | — | — |
| Net sales | — | — | — | New“approximately $1.01 billion” | — | — | — | — |
| Net sales | — | — | New“approximately $570.0 million” | — | — | — | — | — |
| Net sales | — | New“approximately $580.0 million” | — | — | — | — | — | — |
| Net sales (first half vs. second half) | — | — | New“sales in the first half of fiscal 2026 to be lower as compared to the previous year, with acceleration expected in the second half of fiscal 2026” | — | — | — | — | — |
| Adjusted EBITDA | — | New“between $310.0 million and $315.0 million” | — | Lowered“between $198.0 million and $208.0 million” | Raised“between $208.0 million and $213.0 million” | — | — | — |
| Adjusted EBITDA, as defined | — | New“$ 310,000 - 315,000” | — | — | Lowered“$208,000 - 213,000” | — | — | — |
| Adjusted EBITDA, as defined | — | — | — | New“198,000 - 208,000” | — | — | — | — |
| Diluted earnings per share | — | New“between $4.15 and $4.25” | — | Lowered“between $2.53 and $2.73” | Raised“between $2.72 and $2.82” | — | — | — |
| Diluted earnings per share | — | — | — | New“between $1.43 and $1.63” | — | — | — | — |
| Diluted earnings per share | — | — | New“between $0.02 and $0.12” | — | — | — | — | — |
| Diluted earnings per share | — | New“between $0.05 and $0.15” | — | — | — | — | — | — |
| Forecasted GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share | — | — | New“$ 0.02 - 0.12” | — | — | — | — | — |
| Forecasted GAAP net income attributable to G-III Apparel Group, Ltd. | — | — | New“$ 1,000 - 6,000” | — | — | — | — | — |
| Forecasted Non-GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share, as defined | — | — | New“$ 0.02 - 0.12” | — | — | — | — | — |
| Forecasted Non-GAAP net income attributable to G-III Apparel Group, Ltd., as defined | — | — | New“$ 1,000 - 6,000” | — | — | — | — | — |
| GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share | — | New“$ 4.15 - 4.25” | — | — | Lowered“$2.72 - 2.82” | — | — | — |
| GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share | — | — | — | New“1.43 - 1.63” | — | — | — | — |
| GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share | — | — | — | New“2.53 - 2.73” | — | — | — | — |
| GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share | — | New“$ 0.05 - 0.15” | — | — | — | — | — | — |
| GAAP net income attributable to G-III Apparel Group, Ltd. | — | — | — | New“62,000 - 72,000” | — | — | — | — |
| GAAP net income attributable to G-III Apparel Group, Ltd. | — | — | — | New“112,000 - 122,000” | — | — | — | — |
| GAAP net income attributable to G-III Apparel Group, Ltd. | — | New“$ 2,000 - 7,000” | — | — | — | — | — | — |
| GAAP net income attributable to G-III Apparel Group, Ltd. | — | New“$ 192,000 - 197,000” | — | — | — | — | — | — |
| Net income | — | New“between $192.0 million and $197.0 million” | — | Lowered“between $112.0 million and $122.0 million” | Raised“between $121.0 million and $126.0 million” | — | — | — |
| Net income | — | — | — | New“between $62.0 million and $72.0 million” | — | — | — | — |
| Net income | — | — | New“between $1.0 million and $6.0 million” | — | — | — | — | — |
| Net income | — | New“between $2.0 million and $7.0 million” | — | — | — | — | — | — |
| Net income attributable to G-III Apparel Group, Ltd. | — | — | — | — | New“$121,000 - 126,000” | — | — | — |
| Non-GAAP diluted earnings per share | — | New“between $4.15 and $4.25” | — | Lowered“between $2.55 and $2.75” | Raised“between $2.80 and $2.90” | — | — | — |
| Non-GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share, as defined | — | New“$ 4.15 - 4.25” | — | — | Lowered“$2.80 - 2.90” | — | — | — |
| Non-GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share, as defined | — | — | — | New“1.43 - 1.63” | — | — | — | — |
| Non-GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share, as defined | — | — | — | New“2.55 - 2.75” | — | — | — | — |
| Non-GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share, as defined | — | New“$ 0.05 - 0.15” | — | — | — | — | — | — |
| Non-GAAP net income | — | New“between $192.0 million and $197.0 million” | — | Lowered“between $113.0 million and $123.0 million” | Raised“between $125.0 million and $130.0 million” | — | — | — |
| Non-GAAP net income (loss) attributable to G-III Apparel Group, Ltd., as defined | — | New“$ 2,000 - 7,000” | — | — | — | — | — | — |
| Non-GAAP net income (loss) attributable to G-III Apparel Group, Ltd., as defined | — | New“$ 192,000 - 197,000” | — | — | — | — | — | — |
| Non-GAAP net income attributable to G-III Apparel Group, Ltd., as defined | — | — | — | — | New“$125,000 - 130,000” | — | — | — |
| Non-GAAP net income attributable to G-III Apparel Group, Ltd., as defined | — | — | — | New“62,000 - 72,000” | — | — | — | — |
| Non-GAAP net income attributable to G-III Apparel Group, Ltd., as defined | — | — | — | New“113,000 - 123,000” | — | — | — | — |
| Depreciation and amortization | — | New“30,000” | — | — | — | — | — | — |
| Gross impact of tariffs | — | — | — | — | New“approximately $135 million” | — | — | — |
| Income tax expense | — | New“79,000” | — | — | — | — | — | — |
| Interest and financing charges, net | — | New“9,000” | — | — | — | — | — | — |
| Net interest expense | — | New“approximately $9.0 million” | — | Lowered“approximately $5.0 million” | Lowered“approximately $1.5 million” | — | — | — |
| Remaining unmitigated impact (tariffs) | — | — | — | — | New“$65 million” | — | — | — |
| Remaining unmitigated tariff impact | — | — | — | New“estimated at $75 million, primarily weighted to the second half of the year” | — | — | — | — |
| Tax rate | — | New“28.5%” | — | Raised“29.9%” | Lowered“29.5%” | — | — | — |
| Total incremental tariff cost | — | — | — | New“approximately $155 million” | — | — | — | — |
| Unmitigated cost of tariffs - additional expense | — | — | New“approximately $135.0 million, which is expected to primarily be weighted to the second half of the year” | — | — | — | — | — |
| For FY2025 | ||||||||
| Net sales | New“increase by approximately 2% to approximately $3.15 billion (prior approximately $3.20 billion)” | — | — | — | — | — | — | — |
| Adjusted EBITDA | New“between $309.0 million and $314.0 million (prior $305.0 million and $310.0 million)” | — | — | — | — | — | — | — |
| Adjusted EBITDA, as defined | New“$ 309,000 - 314,000” | — | — | — | — | — | — | — |
| Diluted earnings per share | New“between $4.08 and $4.18 (prior $3.94 and $4.04)” | — | — | — | — | — | — | — |
| GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share | New“$ 4.08 - 4.18” | — | — | — | — | — | — | — |
| Net income | New“between $185.0 million and $190.0 million (prior $179.0 million and $184.0 million)” | — | — | — | — | — | — | — |
| Net income attributable to G-III Apparel Group, Ltd. | New“$ 185,000 - 190,000” | — | — | — | — | — | — | — |
| Non-GAAP diluted earnings per share | New“between $4.10 and $4.20 (prior $3.95 and $4.05)” | — | — | — | — | — | — | — |
| Non-GAAP diluted net income attributable to G-III Apparel Group, Ltd. per common share, as defined | New“$ 4.10 - 4.20” | — | — | — | — | — | — | — |
| Non-GAAP net income | New“between $186.0 million and $191.0 million (prior $180.0 and $185.0 million)” | — | — | — | — | — | — | — |
| Non-GAAP net income attributable to G-III Apparel Group, Ltd., as defined | New“$ 186,000 - 191,000” | — | — | — | — | — | — | — |
| Incremental expenses, primarily associated with the launches of Donna Karan, Nautica and Halston | New“approximately $55.0 million (prior approximately $60.0 million)” | — | — | — | — | — | — | — |
| Net interest expense | New“approximately $20.4 million, including a $1.6 million non-GAAP charge related to the write-off of deferred financing costs associated with the redemption of the Notes” | — | — | — | — | — | — | — |
| Tax rate | New“28.6%” | — | — | — | — | — | — | — |
| No period stated | ||||||||
| Marc Jacobs Long-Term Annual Revenue target | — | — | — | — | — | — | — | New“$1 Billion” |
| Marc Jacobs acquisition earnings impact | — | — | — | — | — | — | — | New“expected to be dilutive during the first 12 months after closing, with accretion expected thereafter” |
| Calvin Klein and Tommy Hilfiger businesses sales | — | New“reduced sales” | — | — | — | — | — | — |
| Marc Jacobs transaction dilution | — | — | — | — | — | — | — | New“dilutive during the first 12 months after closing, with accretion expected thereafter” |
| Owned brands (DKNY, Donna Karan, Karl Lagerfeld, Vilebrequin) sales | — | New“will continue to deliver double-digit sales increases” | — | — | — | — | — | — |
| Owned brands DKNY, Donna Karan, Karl Lagerfeld, and Vilebrequin sales | — | New“continue to deliver double-digit sales increases” | — | — | — | — | — | — |
| Quarterly cash dividend | — | — | — | — | New“$0.10 per share” | — | — | — |