Fair Value Measurement - Financial Assets and Liabilities Accounted for at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	$ 289,307	$ 260,139
Investments under executive deferred compensation plan	33,564	27,270
Private equity securities	168,928	5,890
Private equity securities measured at net asset value	4,536	6,375
Foreign currency forward contracts, assets	17,829	6,016
Obligations under executive deferred compensation plan	33,564	27,270
Foreign currency forward contracts, liabilities	5,752	3,244
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	260,139	246,517
Accretion of discount	5,306	12,735
PIK dividends	19,307	0
Change in fair value	4,554	887
Ending balance	289,306	260,139
Quoted Prices in Active Markets for Identical Items (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0	0
Investments under executive deferred compensation plan	33,564	27,270
Private equity securities	168,928	5,890
Private equity securities measured at net asset value	0	0
Foreign currency forward contracts, assets	0	0
Obligations under executive deferred compensation plan	33,564	27,270
Foreign currency forward contracts, liabilities	0	0
Quoted Prices in Active Markets for Similar Items (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	0	0
Investments under executive deferred compensation plan	0	0
Private equity securities	0	0
Private equity securities measured at net asset value	0	0
Foreign currency forward contracts, assets	17,829	6,016
Obligations under executive deferred compensation plan	0	0
Foreign currency forward contracts, liabilities	5,752	3,244
Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	289,307	260,139
Investments under executive deferred compensation plan	0	0
Private equity securities	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