7. Leases (Tables)

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Schedule of operating lease cost and related information

The following table presents certain quantitative information related to our lease arrangements for the three and six months ended June 30, 2020 and 2019, and as of June 30, 2020 and December 31, 2019 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Operating lease cost	$	4,718	$	5,536	$	8,896	$	10,819
Variable lease cost	625		939		1,291		1,688
Short-term lease cost	744		2,858		1,705		5,700
Total lease cost	$	6,087	$	9,333	$	11,892	$	18,207
Payments of amounts included in the measurement of operating lease liabilities					$	11,770	$	10,632
Lease assets obtained in exchange for operating lease liabilities					$	93,425	$	151,081
					June 30, 2020		December 31, 2019
Operating lease assets					$	237,001	$	145,711
Operating lease liabilities – current					14,453		11,102
Operating lease liabilities – noncurrent					196,877		112,515

Weighted-average remaining lease term	20 years		15 years
Weighted-average discount rate	3.1	%	4.3	%

Operating lease liability maturity

As of June 30, 2020, the future payments associated with our lease liabilities were as follows (in thousands):

	Total Lease Liabilities
Remainder of 2020	$	8,021
2021	18,831
2022	17,994
2023	17,486
2024	17,188
Thereafter	187,002
Total future payments	266,522
Less: interest	(55,192)
Total lease liabilities	$	211,330