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Fair Value Measurements - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading investments	$ 58,166		$ 54,481
Gain (loss) debt securities	2,000	$ 2,000
Gain (loss) on investment	$ 2,000	2,000
Minimum \| Measurement Input CPR Rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.071
Minimum \| Measurement Input, Default Rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.051
Maximum \| Measurement Input CPR Rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.111
Maximum \| Measurement Input, Default Rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.207
Weighted Average \| Measurement Input CPR Rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0849
Weighted Average \| Measurement Input, Default Rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.1103
Debt Securities, Trading
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Settlement debt securities	$ 2,000	$ (1,000)
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading investments	$ 58,000		$ 54,000