Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Summary of Operating Leases

Operating leases consisted of the following at June 30, 2021:

	June 30, 2021			December 31, 2020
Real estate facilities	$	156,436		$	157,010
Office equipment		2,120			1,864
Other		612			580
		159,168			159,454
Amortization of right-of-use assets		(47,413	)		(32,322	)
Total operating lease right-of-use assets	$	111,755		$	127,132

Summary of Rent Expense

Rent expense is recognized on a straight-line basis over the lease term.  Rent expense consists of the following:

	Three Months Ended				Six Months Ended
	June 30, 2021		June 30, 2020		June 30, 2021		June 30, 2020
Operating lease costs	$	8,654	$	9,444	$	17,447	$	18,770
Short-term lease costs		105		442		236		873
Variable lease costs		9		1		19		1
Total rent expense	$	8,768	$	9,887	$	17,702	$	19,644

Summary of Future Minimum Lease Payments Under Non-Cancellable Leases

Future minimum lease payments under non-cancellable leases as of June 30, 2021 were as follows:

June 30, 2022	$	38,375
June 30, 2023		29,162
June 30, 2024		20,090
June 30, 2025		13,906
June 30, 2026		12,779
Thereafter		30,791
Total future minimum lease payments		145,103
Less:  Interest		(13,229	)
Total operating lease liabilities	$	131,874
Operating lease liabilities - current	$	35,128
Operating lease liabilities - non-current		96,746
Total operating lease liabilities	$	131,874

Summary of Other Information Related to Operating Leases

Other information related to operating leases is as follows:

	June 30, 2021			June 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	8,779		$	19,086
Right-of-use assets obtained in exchange for operating lease liabilities	$	772		$	22,721
Weighted-average remaining lease term - operating leases		5.8			5.9
Weighted-average discount rate - operating leases		3.3	%		2.9	%