Investment Securities - Securities Held-to-Maturity Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022
Schedule of Held-to-maturity Securities [Line Items]
Allowance for Credit Losses, Beginning of Period	$ 1,500	$ 0
Provision for Credit Losses	0	1,500
Charge-offs	0	0
Recoveries	0	0
Allowance for Credit Losses, End of Period	1,500	1,500
Municipal securities
Schedule of Held-to-maturity Securities [Line Items]
Allowance for Credit Losses, Beginning of Period	140	0
Provision for Credit Losses	0	140
Charge-offs	0	0
Recoveries	0	0
Allowance for Credit Losses, End of Period	140	140
Corporate debt securities
Schedule of Held-to-maturity Securities [Line Items]
Allowance for Credit Losses, Beginning of Period	1,360	0
Provision for Credit Losses	0	1,360
Charge-offs	0	0
Recoveries	0	0
Allowance for Credit Losses, End of Period	$ 1,360	$ 1,360