The Company has operating leases for facilities and equipment which have remaining terms ranging from 1 to 12 years. The leases may include options to extend the lease periods for up to 5 years at rates approximating market rates and/or options to terminate the leases within 1 year. The leases may include a residual value guarantee or a responsibility to return the property to its original state of use. A limited number of leases contain provisions that provide for rental increases based on consumer price indices. The change in rent expense resulting from changes in these indices are included within variable rent.

	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

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

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

	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	%

At June 30, 2021, the Company had an additional operating lease that had not yet commenced with a potential lease liability of $115.3 million. The operating lease has a term of 18 years and is anticipated to commence on March 1, 2022, when the Company takes possession of the property upon completion of buildouts.