Accounting for Stock-based Compensation - Summary of Non-employee Director Awards Activity (Details) - Non-Employee Director Awards - Omnibus Plan - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended			24 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Non-vested Beginning Balance	6,510	4,860	4,968	4,968
Number of Shares, Granted	11,186	12,541	9,732
Number of Shares, Vested	(12,110)	(10,891)	(9,840)
Number of Shares, Non-vested Ending Balance	5,586	6,510	4,860	6,510
Number of Shares, expected to vest in the future	5,586
Weighted-Average Grant Date Fair Value, Non-vested Beginning Balance	$ 64.47	$ 73.94	$ 72.35	$ 72.35
Weighted-Average Grant Date Fair Value, Granted	90.73	64.58	73.94
Weighted-Average Grant Date Fair Value, Vested	76.61	68.82	73.14
Weighted-Average Grant Date Fair Value, Non-vested Ending Balance	90.73	$ 64.47	$ 73.94	$ 64.47
Weighted-Average Grant Date Fair Value, expected to vest in the future	$ 90.73
Aggregate Intrinsic Value, Non-vested	$ 572,844
Aggregate Intrinsic Value, expected to vest in the future	$ 572,844