Accumulated Other Comprehensive Income - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 6,271	$ 5,283	$ 48
Affected Line Item in the Statements of Income | Net realized gains (losses) on available-for-sale securities (total reclassified amount before tax)
Unrealized gains/(losses) on available- for-sale securities		78	(62)
Affected Line Item in the Statements of Income | Amortization of realized gain on termination of cash flow hedge (total reclassification amount before tax)
Change in fair value of cash flow hedge available-for-sale securities reclassified out of AOCI	8,123	6,764
Affected Line Item in the Statements of Income | Tax (expense) benefit
Income taxes on unrealized gains on available-for-sale securities reclassified out of AOCI	$ (1,852)	$ (1,559)	$ 14