Leases - Schedule of Components of Lease Cost for Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Operating leases:
Lease cost	$ 13,259	$ 12,968
Variable lease cost	1,004	845
Short-term lease cost	189	128
Operating lease cost	14,452	13,941
Sublease income	(351)	(268)
Total lease cost net	$ 14,101	$ 13,673

Operating and variable lease cost.

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- Definition

Operating leases.

+ References

No definition available.

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- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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- Definition

Amount of sublease income excluding finance and operating lease expense.

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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