Equity Incentive Plan Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 1,029.48	$ 1,230.18	$ 1,445.37
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Intrinsic Value, Amount Per Share	$ 12,800,000	10,800,000	11,400,000
Number of Shares Authorized for Stock Option Plan	2,000,000
Options, Award Vesting Period	5 years
Restricted Stock Units, Vesting Period	5 years
Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 400.30	$ 447.52	$ 377.89
Options, Exercises in Period, Total Intrinsic Value	$ 68,700	$ 121,300	$ 116,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	6,000
Restricted Stock Units, Vested in Period, Total Fair Value	8,600	8,200	11,400
Allocated Share-based Compensation Expense for Restricted Stock Units	$ 8,800	$ 7,900	$ 7,600
Number of Shares Available for Grant	2,873,508
Deferred Compensation Liability, Current and Noncurrent	$ 56,400
Estimated Weighted Average Amortization Period	2 years 4 months 24 days
Performance Share Units Vesting Period	3 years
Performance Options Payout Percentage - Maximum	200.00%
Performance OptionPayout Percentage - Minimum	0.00%
Performance Share Unit Payout Percentage - Minimum	0.00%
Performance Share Units Payout Percentage - Maximum	200.00%
Performance Option Fair Value	$ 1,103.23	$ 1,357.26	$ 1,447.75
Performance Share Unit Total Grant Value	$ 3,300
Performance Share Payout Percentage	5.00%
Allocated Share-based compensation expense for PSUs	$ 3,100	$ 4,000	$ 4,200