Fair Value Measurement Financial Assets and Liabilities Accounted for at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments under executive deferred compensation plan	$ 32,491	$ 32,447
Private equity securities measured at net asset value	4,696	4,661
Foreign currency forward contracts, assets	3,138	13,606
Obligations under executive deferred compensation plan	32,491	32,447
Foreign currency forward contracts, liabilities	305	4,803
Debt Securities, Available-for-sale	246,517
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	246,518	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	244,530
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Accretion Of Discount	7,429
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Period Increase (Decrease)	(5,441)
Quoted Prices in Active Markets for Identical Items (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments under executive deferred compensation plan	32,491	32,447
Private equity securities measured at net asset value	0	0
Foreign currency forward contracts, assets	0	0
Obligations under executive deferred compensation plan	32,491	32,447
Foreign currency forward contracts, liabilities	0	0
Debt Securities, Available-for-sale	0
Quoted Prices in Active Markets for Similar Items (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments under executive deferred compensation plan	0	0
Private equity securities measured at net asset value	0	0
Foreign currency forward contracts, assets	3,138	13,606
Obligations under executive deferred compensation plan	0	0
Foreign currency forward contracts, liabilities	305	4,803
Debt Securities, Available-for-sale	0
Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments under executive deferred compensation plan	0	0
Private equity securities measured at net asset value	0	0
Foreign currency forward contracts, assets	0	0
Obligations under executive deferred compensation plan	0	0
Foreign currency forward contracts, liabilities	0	$ 0
Debt Securities, Available-for-sale	$ 246,517