Leases (Tables)

6 Months Ended

Jun. 30, 2020

Leases

Schedule of components of lease expense

The components of lease expense were as follows and are primarily included in cost of sales on the accompanying unaudited condensed consolidated statements of operations, in thousands:

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Operating lease cost (a)	$	12,096	$	12,668	$	24,367	$	26,204
Short-term lease cost		2,813		3,005		5,877		6,010
Sublease income		(49)		(154)		(111)		(308)
Net lease cost	$	14,860	$	15,519	$	30,133	$	31,906

(a) Includes variable cost components of $1,330 and $1,389 in the three months ended June 30, 2020 and 2019, respectively, and $2,774 and $2,767 of variable cost components in the six months ended June 30, 2020 and 2019, respectively.

Schedule of future minimum lease payments

Future minimum lease payments under non-cancellable operating leases as of June 30, 2020 were as follows, in thousands:

Payments due by Period
2020	$	20,072
2021		30,979
2022		20,751
2023		11,043
2024		6,287
2025 & Thereafter		6,390
Total future minimum lease payments		95,522
Less: imputed interest		(6,280)
Lease liability at June 30, 2020	$	89,242

Schedule of cash flow information

The amount below is included in the cash flows provided by (used in) operating activities section on the accompanying unaudited condensed consolidated statements of cash flows, in thousands:

	Six Months Ended June 30,
	2020		2019
Cash paid for amounts included in the measurement of lease liabilities	$	(21,544)	$	(22,896)