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LEASES (Tables)

9 Months Ended

Sep. 30, 2023

LEASES

Schedule of components of lease expense

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Three Months Ended

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Nine Months Ended

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September 30

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September 30

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2023

2022

2023

2022

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(in thousands)

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Operating lease expense

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$

9,880

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$

8,666

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$

29,094

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$

23,116

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Variable lease expense

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​

1,792

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1,176

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5,094

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3,220

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Sublease income

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(49)

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(286)

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(168)

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(544)

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Total operating lease expense(1)

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$

11,623

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$

9,556

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$

34,020

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$

25,792

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(1) Operating lease expense excludes short-term leases with a term of 12 months or less.

Schedule of operating cash flows from operating lease activity

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​	​	​	​	​	​	​	​
​	​	Nine Months Ended					​
​	​	September 30					​
​	​	2023		​	2022
​	​	(in thousands)					​
Noncash change in operating right-of-use assets	​	$	25,836	​	$	20,356	​
Change in operating lease liabilities	​	​	(22,550)	​	​	(18,777)	​
Operating right-of-use-assets and lease liabilities, net	​	$	3,286	​	$	1,579	​
​	​	​	​	​	​	​	​
Cash paid for amounts included in the measurement of operating lease liabilities	​	$	(25,738)	​	$	(21,526)	​

Schedule of maturities of operating lease liabilities

Maturities of operating lease liabilities at September 30, 2023, were as follows:

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​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	Equipment		​
​	​	​	​	​	Land and		​	and		​
​		Total			Structures(1)			Other
​		(in thousands)								​
Remainder of 2023	​	$	9,908	​	$	9,810	​	$	98	​
2024	​		38,264	​		37,947	​		317	​
2025	​		34,301	​		34,278	​		23	​
2026	​		31,535	​		31,535	​		—	​
2027	​		25,418	​		25,418	​		—	​
Thereafter	​		99,524	​		99,524	​		—	​
Total lease payments	​	​	238,950	​	​	238,512	​	​	438	​
Less imputed interest	​	​	(35,781)	​	​	(35,771)	​	​	(10)	​
Total	​	$	203,169	​	$	202,741	​	$	428	​

(1) Excludes future minimum lease payments for leases which were executed but had not yet commenced as of September 30, 2023, totaling $51.3 million, which will be paid over approximately 10 years.

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- Definition

Tabular disclosure of cash flow activity from operating lease.

+ References

No definition available.

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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

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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

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