Leases - Operating and Financing Lease Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets and Liabilities, Lessee:
Operating lease right-of-use assets, net	$ 70,055	$ 35,621
Finance lease right-of-use assets, net	2,943	334
Total	72,998	35,955
Operating lease liabilities	6,206	7,899
Financing lease liabilities	798	74
Total current lease liabilities	7,004	7,973
Operating lease liabilities	78,146	41,849
Financing lease liabilities	2,165	267
Total non-current lease liabilities	80,311	42,116
Total lease liabilities	$ 87,315	$ 50,089