LEASES (Tables)

3 Months Ended

Mar. 31, 2021

LEASES

Schedule of components of lease expense

	Three Months Ended
	March 31, 2021		March 31, 2020
	(in thousands)
Operating lease expense	$	6,642	$	5,796
Variable lease expense		1,332		1,040
Sublease income		(155)		(92)
Total operating lease expense(1)	$	7,819	$	6,744

(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

	Three Months Ended
	March 31, 2021		March 31, 2020
	(in thousands)
Noncash change in operating right-of-use assets	$	5,741	$	5,815
Change in operating lease liabilities		(5,174)		(5,953)
Operating right-of-use-assets and lease liabilities, net	$	567	$	(138)
Cash paid for amounts included in the measurement of operating lease liabilities	$	(6,079)	$	(5,925)

Schedule of maturities of operating lease liabilities

					Equipment
			Land and		and
	Total		Structures		Other
	(in thousands)
Remainder of 2021	$	18,816	$	18,748	$	68
2022		21,459		21,423		36
2023		17,248		17,223		25
2024		15,088		15,088		—
2025		12,561		12,561		—
Thereafter		43,109		43,109		—
Total lease payments		128,281		128,152		129
Less imputed interest		(12,176)		(12,174)		(2)
Total	$	116,105	$	115,978	$	127