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LEASES (Tables) | 12 Months Ended
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Dec. 31, 2024
LEASES |
Schedule of components of lease expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023 |  | 2022
​ | ​ | (in thousands)
Operating lease expense | ​ | $ | 42,772 | ​ | $ | 38,794 | ​ | $ | 31,790
Variable lease expense | ​ | ​ | 7,183 | ​ | ​ | 6,804 | ​ | ​ | 4,188
Sublease income | ​ | ​ | (2,631) | ​ | ​ | (246) | ​ | ​ | (391)
Total operating lease expense | ​ | $ | 47,324 | ​ | $ | 45,352 | ​ | $ | 35,587
Schedule of operating cash flows from operating lease activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023 |  | 2022 |
​ | ​ | (in thousands) | ​
Noncash change in operating right-of-use assets | ​ | $ | 34,445 | ​ | $ | 33,470 | ​ | $ | 27,465 | ​
Cash payments to obtain right-of-use assets | ​ | ​ | (7,752) | ​ | ​ | — | ​ | ​ | — | ​
Change in operating lease liabilities | ​ | ​ | (33,898) | ​ | ​ | (30,550) | ​ | ​ | (24,513) | ​
Changes in operating right-of-use assets and lease liabilities, net | ​ | $ | (7,205) | ​ | $ | 2,920 | ​ | $ | 2,952 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Supplemental cash flow information | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash paid for amounts included in the measurement of operating lease liabilities | ​ | $ | 42,173 | ​ | $ | 35,759 | ​ | $ | 28,830 | ​
Right-of-use assets obtained in exchange for operating lease liabilities | ​ | $ | 49,452 | ​ | $ | 62,425 | ​ | $ | 87,294 | ​
Schedule of maturities of operating lease liabilities | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Operating | ​
​ | ​ | Lease | ​
​ |  | Liabilities |
​ |  | (in thousands) | ​
2025 | ​ | $ | 43,660 | ​
2026 | ​ |  | 40,800 | ​
2027 | ​ |  | 33,992 | ​
2028 | ​ |  | 30,325 | ​
2029 | ​ |  | 25,307 | ​
Thereafter | ​ |  | 93,557 | ​
Total lease payments | ​ | ​ | 267,641 | ​
Less imputed interest | ​ | ​ | (43,299) | ​
Total | ​ | $ | 224,342 | ​
​

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6 + Details
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