Property and Equipment - (Schedule of Property and Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property and Equipment, Net
Finance lease right-of-use assets	$ 6,797	$ 10,045
Property and equipment and finance lease, gross	250,219	204,165
Less: accumulated depreciation	(125,493)	(98,110)
Total	124,726	106,055
Computer equipment and software
Property and Equipment, Net
Property and equipment gross	120,685	107,666
Internal-use software development costs
Property and Equipment, Net
Property and equipment gross	122,479	86,454
Furniture, equipment, and building improvements
Property and Equipment, Net
Property and equipment gross	$ 258	$ 0

Amount, before accumulated amortization, of right-of-use asset from finance lease.

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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