Fair Value Measurements - Credit Link Level 3 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020
Fair Value, Option, Quantitative Disclosures [Line Items]
Other Borrowings, Fair Value Disclosure	$ 123,116	$ 132,030
Level 3
Fair Value, Option, Quantitative Disclosures [Line Items]
Gain on Sale of Investments		2,490
Net increase (decrease) in borrowings	0	132,815
Credit-Link Notes
Fair Value, Option, Quantitative Disclosures [Line Items]
Other Borrowings, Fair Value Disclosure	123,116	132,030	$ 0
Net increase (decrease) in borrowings	128,700
Credit-Link Notes | Level 3
Fair Value, Option, Quantitative Disclosures [Line Items]
Gain on Sale of Investments	5,404	911
Net increase (decrease) in borrowings	(6,524)	(1,696)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	$ (7,794)	$ 0