Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Lease, Cost

The following table summarizes the Company's lease cost included in general and administrative expense in the consolidated statements of operations:

	Years Ended December 31,
(in thousands)	2020		2019		2018
Operating lease cost	$	11,247	$	11,495	$	11,552

Supplemental information related to operating leases is summarized below:

	Years Ended December 31,
(in thousands)	2020		2019		2018
Supplemental cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$	12,408	$	12,365	$	11,709
Supplemental non-cash information:
Right-of-use assets obtained in exchange for new lease liabilities	3,026		—		614

Assets And Liabilities, Lessee

Other information related to operating leases is summarized below:

	Years Ended December 31,
	2020		2019		2018
Weighted-average remaining lease term (years)	3		4		5
Weighted-average discount rate	2.8	%	2.8	%	2.8	%

Lessee, Operating Lease, Liability, Maturity

The following table summarizes the maturities of lease liabilities at December 31, 2020 (in thousands):

Year Ending December 31,	Operating Leases
2021	$	12,173
2022	11,875
2023	11,428
2024	966
Total remaining undiscounted lease payments	36,442
Less: imputed interest	1,516
Total remaining discounted lease payments	$	34,926