Leases (Tables)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Schedule of components of lease cost

The following table details the components of our lease cost (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Operating lease cost	$	14,336	$	16,132	$	45,391	$	48,561
Variable lease cost		4,298		4,204		11,417		11,256
Short-term lease cost		6,258		12,923		13,233		30,089
Sublease income		(289)		(344)		(967)		(951)
Net lease cost	$	24,603	$	32,915	$	69,074	$	88,955

Schedule of maturities of operating lease liabilities

Maturities of our operating lease liabilities as of September 30, 2021 are as follows (in thousands):

			Facilities and
	Vessels		Equipment		Total
Less than one year	$	55,817	$	5,731	$	61,548
One to two years		43,045		4,946		47,991
Two to three years		8,013		4,689		12,702
Three to four years		—		3,212		3,212
Four to five years		—		1,048		1,048
Over five years		—		4,443		4,443
Total lease payments	$	106,875	$	24,069	$	130,944
Less: imputed interest		(7,388)		(4,082)		(11,470)
Total operating lease liabilities	$	99,487	$	19,987	$	119,474
Current operating lease liabilities	$	50,295	$	4,756	$	55,051
Non-current operating lease liabilities		49,192		15,231		64,423
Total operating lease liabilities	$	99,487	$	19,987	$	119,474

Maturities of our operating lease liabilities as of December 31, 2020 are as follows (in thousands):

			Facilities and
	Vessels		Equipment		Total
Less than one year	$	54,621	$	6,028	$	60,649
One to two years		52,106		5,435		57,541
Two to three years		34,580		4,649		39,229
Three to four years		2,470		4,374		6,844
Four to five years		—		2,340		2,340
Over five years		—		4,054		4,054
Total lease payments	$	143,777	$	26,880	$	170,657
Less: imputed interest		(13,352)		(4,697)		(18,049)
Total operating lease liabilities	$	130,425	$	22,183	$	152,608
Current operating lease liabilities	$	46,748	$	4,851	$	51,599
Non-current operating lease liabilities		83,677		17,332		101,009
Total operating lease liabilities	$	130,425	$	22,183	$	152,608

Schedule of weighted average remaining lease term and discount rate

The following table presents the weighted average remaining lease term and discount rate:

	September 30,		December 31,
	2021		2020
Weighted average remaining lease term	2.6	years	3.1	years
Weighted average discount rate	7.59	%	7.53	%

Schedule of other information related to operating leases

The following table presents other information related to our operating leases (in thousands):

	Nine Months Ended
	September 30,
	2021		2020
Cash paid for operating lease liabilities	$	46,141	$	49,350
Right-of-use assets obtained in exchange for new operating lease obligations		5,975		36