Leases (Tables)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Components of Lease Expense

The components of lease expense were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Finance lease cost:
Amortization of right-of-use asset	$	185	$	172	$	527	$	527
Interest on lease liabilities	8		11		24		39
Total finance lease cost	193		183		551		566
Operating lease cost	10,072		11,087		30,142		33,157
Short-term lease cost	2,743		2,126		9,379		5,846
Total lease cost	$	13,008	$	13,396	$	40,072	$	39,569