Fair Value Measurements (Details 3) - Level 3 - Other securities - Fair Value, Recurring - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 0	$ 15,001	$ 25,725	$ 16,435
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	(8)	(77)	5
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	(156)	(115)	(41)
Stock and Warrants Purchases During Period	0	0	20,100
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	10,285	10,532	10,774
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)	0
Fair Value, Assets, Level 3 to Level 2 Transfers, Amount	$ (4,552)	$ 0	$ 0