Fair Value Measurement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	$ 297,987	$ 289,307
Investments under executive deferred compensation plan	32,884	33,564
Private equity securities	44,234	168,928
Private equity securities measured at net asset value	4,535	4,536
Foreign currency forward contracts, assets	2,239	17,829
Obligations under executive deferred compensation plan	32,884	33,564
Foreign currency forward contracts, liabilities	17,180	5,752
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance at December 31, 2023	289,307
PIK dividends	8,680
Ending balance at March 31, 2024	297,987
Quoted Prices in Active Markets for Identical Items (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	0	0
Investments under executive deferred compensation plan	32,884	33,564
Private equity securities	44,234	168,928
Private equity securities measured at net asset value	0	0
Foreign currency forward contracts, assets	0	0
Obligations under executive deferred compensation plan	32,884	33,564
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]
Available for sale debt securities	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	2,239	17,829
Obligations under executive deferred compensation plan	0	0
Foreign currency forward contracts, liabilities	17,180	5,752
Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	297,987	289,307
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