Inventories - Schedule of Inventory, Current (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Finished goods and parts	$ 277,760	$ 208,656
Work in process	24,895	21,225
Raw materials	18,262	12,620
Inventory, net	$ 320,917	$ 242,501	[1]

[1] Years ended December 31, 2020 amounts have been adjusted to reflect the change in inventory accounting method, as described in Note 1 to the Consolidated Financial Statements.