LEASES (Tables)

6 Months Ended

Jun. 30, 2019

Leases

Schedule of components of lease expense

	Three Months Ended		Six Months Ended
	June 30, 2019		June 30, 2019
	(in thousands)
Operating lease expense	$	5,642	$	10,981
Variable lease expense		774		1,613
Sublease income		(69)		(136)
Total operating lease expense	$	6,347	$	12,458

Schedule of operating cash flows from operating lease activity

	Six Months Ended
	June 30, 2019
	(in thousands)
Noncash change in operating right-of-use assets	$	9,784
Change in operating lease liabilities		(9,625)
Operating right-use-of-assets and lease liabilities, net	$	159
Cash paid for amounts included in the measurement of operating lease liabilities	$	(10,815)

Schedule of supplemental balance sheet information related to lease liabilities

	June 30, 2019
	(in thousands, except lease term and discount rate)
			Land and		Equipment
Operating leases		Total	Structures		and Others
Operating right-of-use assets (long-term)	$	68,810	$	67,029	$	1,781
Operating lease liabilities (current)	$	18,273	$	17,250	$	1,023
Operating lease liabilities (long-term)		54,040		53,293		747
Total operating lease liabilities	$	72,313	$	70,543	$	1,770
Weighted-average remaining lease term (in years)		5.4
Weighted-average discount rate		3.93%

Schedule of maturities of operating lease liabilities

Maturities of operating lease liabilities at June 30, 2019 were as follows:

					Equipment
			Land and		and
	Total		Structures		Other
Remainder of 2019	$	10,668	$	10,126	$	542
2020		19,152		18,142		1,010
2021		14,716		14,442		274
2022		10,372		10,372		—
2023		7,550		7,550		—
Thereafter		18,109		18,109		—
Total lease payments		80,567		78,741		1,826
Less imputed interest		(8,254)		(8,198)		(56)
Total	$	72,313	$	70,543	$	1,770

Schedule of maturities of operating lease liabilities at December 31, 2018

The future minimum rental commitments, net of minimum rentals to be received under noncancelable subleases, as of December 31, 2018 for all noncancelable operating leases were as follows:

					Equipment
			Land and		and
	Total		Structures		Other
2019	$	19,130	$	18,067	$	1,063
2020		14,620		13,676		944
2021		10,972		10,716		256
2022		7,125		7,125		—
2023		4,477		4,477		—
Thereafter		5,850		5,850		—
Total	$	62,174	$	59,911	$	2,263