LEASES (Tables)

12 Months Ended

Dec. 31, 2023

LEASES

Schedule of components of lease expense

	Year Ended December 31
	2023		2022		2021
	(in thousands)
Operating lease expense	$	38,794	$	31,790	$	26,552
Variable lease expense		6,804		4,188		4,128
Sublease income		(246)		(391)		(626)
Total operating lease expense(1)	$	45,352	$	35,587	$	30,054

(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

	Year Ended December 31
	2023		2022		2021
	(in thousands)
Noncash change in operating right-of-use assets	$	33,470	$	27,465	$	24,023
Change in operating lease liabilities		(30,550)		(24,513)		(23,400)
Operating right-of-use-assets and lease liabilities, net	$	2,920	$	2,952	$	623
Cash paid for amounts included in the measurement of operating lease liabilities	$	(35,759)	$	(28,830)	$	(25,909)

Schedule of supplemental balance sheet information related to lease liabilities

	December 31, 2023
	(in thousands, except lease term and discount rate)
			Land and		Equipment
		Total	Structures		and Others
Operating right-of-use assets (long-term)	$	169,999	$	169,663	$	336
Operating lease liabilities (current)	$	32,172	$	31,865	$	307
Operating lease liabilities (long-term)		176,621		176,598		23
Total operating lease liabilities	$	208,793	$	208,463	$	330
Weighted-average remaining lease term (in years)		7.4
Weighted-average discount rate		4.29%

	December 31, 2022
	(in thousands, except lease term and discount rate)
			Land and		Equipment
		Total	Structures		and Others
Operating right-of-use assets (long-term)	$	166,515	$	165,822	$	693
Operating lease liabilities (current)	$	26,225	$	25,824	$	401
Operating lease liabilities (long-term)		147,828		147,534		294
Total operating lease liabilities	$	174,053	$	173,358	$	695
Weighted-average remaining lease term (in years)		7.6
Weighted-average discount rate		3.58%

Schedule of maturities of operating lease liabilities

					Equipment
			Land and		and
	Total		Structures(1)		Other
	(in thousands)
2024	$	40,218	$	39,905	$	313
2025		36,458		36,435		23
2026		33,187		33,187		—
2027		27,071		27,071		—
2028		24,033		24,033		—
Thereafter		86,011		86,011		—
Total lease payments		246,978		246,642		336
Less imputed interest		(38,185)		(38,179)		(6)
Total	$	208,793	$	208,463	$	330

(1) Excludes future minimum lease payments for leases which were executed but had not yet commenced as of December 31, 2023, of $28.8 million which will be paid over approximately 10 years.