Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	$ 162,094	$ 125,972
Fair value, long-term AFS securities	257,633	138,917
Deferred compensation plan assets	52,300	48,400
Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation	13,752	14,635
Contingent consideration	4,991	5,324
Level 1 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation	13,752	14,635
Contingent consideration	0	0
Level 2 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation	0	0
Contingent consideration	0	0
Level 3 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation	0	0
Contingent consideration	4,991	5,324
Debt Securities | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	162,094	125,972
Fair value, long-term AFS securities	257,633	138,917
Debt Securities | Level 1 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Fair value, long-term AFS securities	0	0
Debt Securities | Level 2 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	162,094	125,972
Fair value, long-term AFS securities	257,633	138,917
Debt Securities | Level 3 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Fair value, long-term AFS securities	0	0
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	108,069	51,029
Fair value, long-term AFS securities	103,942	108,830
Corporate debt securities | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	108,069	51,029
Fair value, long-term AFS securities	103,942	108,830
Corporate debt securities | Level 1 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Fair value, long-term AFS securities	0	0
Corporate debt securities | Level 2 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	108,069	51,029
Fair value, long-term AFS securities	103,942	108,830
Corporate debt securities | Level 3 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Fair value, long-term AFS securities	0	0
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	48,109	44,133
Fair value, long-term AFS securities	149,859	24,414
U.S. Treasury securities | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	48,109	44,133
Fair value, long-term AFS securities	149,859	24,414
U.S. Treasury securities | Level 1 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Fair value, long-term AFS securities	0	0
U.S. Treasury securities | Level 2 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	48,109	44,133
Fair value, long-term AFS securities	149,859	24,414
U.S. Treasury securities | Level 3 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Fair value, long-term AFS securities	0	0
U.S. governmental agency securities | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	5,916	22,084
Fair value, long-term AFS securities	3,832	5,673
U.S. governmental agency securities | Level 1 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Fair value, long-term AFS securities	0	0
U.S. governmental agency securities | Level 2 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	5,916	22,084
Fair value, long-term AFS securities	3,832	5,673
U.S. governmental agency securities | Level 3 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Fair value, long-term AFS securities	0	0
Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities		8,726
Municipal securities | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	8,726
Municipal securities | Level 1 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	0
Municipal securities | Level 2 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	0	8,726
Municipal securities | Level 3 | Recurring | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, short-term AFS securities	$ 0	$ 0