Operating and Finance Lease Liabilities - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Rental expense for all operating lease	$ 22,300	$ 14,600	$ 10,200
Gross profit on sale leaseback transactions	61,000	26,200	$ 16,400
Right of use assets obtained in exchange for new operating lease liabilities	58,500	37,700
Amortization of right-of-use asset from operating lease	48,600	23,600
Amortization of right-of-use asset from finance lease	102,000	32,000
Right of use assets related to operating leases, net	117,016	63,266		$ 90,184	$ 71,789	$ 64,812	$ 47,016	$ 39,679	$ 33,599
Right of use assets related to finance leases, net	5,724	1,714		$ 2,335	$ 2,389	$ 1,707	$ 1,720	$ 1,726	$ 1,733
Prepaid rent and security deposit	5,800	6,000
Right of use assets obtained in exchange for new finance lease liabilities	$ 4,100	$ 100
Minimum
Lessee, Lease, Description [Line Items]
Lease Term - as Lessee	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease Term - as Lessee	9 years