Changes In Accumulated Other Comprehensive Income (Loss) By Component (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 1,366,217	$ 1,117,086	$ 1,052,795
Unrealized gains (losses) arising during period, before tax	(236,834)	5,480	501
Income tax effect	61,577	(1,425)	155
Other comprehensive income (loss) before reclassifications	(175,257)	4,055	656
Reclassification adjustments for losses (gains) included in net income, before tax	23,164	(4,420)	(6,986)
Income, tax effect	(6,023)	1,149	1,816
Amounts reclassified from accumulated other comprehensive income (loss) to net income	17,141	(3,271)	(5,170)
Other comprehensive income (loss), net of income tax effect	(158,116)	784	(4,514)
Ending balance	1,402,961	1,366,217	1,117,086
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(4,980)	(5,764)	(1,250)
Other comprehensive income (loss), net of income tax effect	(158,116)	784	(4,514)
Ending balance	(163,096)	(4,980)	(5,764)
Unrealized Gains (Losses) on AFS Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(4,980)	23,312	14,287
Unrealized gains (losses) arising during period, before tax	(236,834)	(6,841)	32,273
Income tax effect	61,577	1,779	(8,390)
Other comprehensive income (loss) before reclassifications	(175,257)	(5,062)	23,883
Reclassification adjustments for losses (gains) included in net income, before tax	23,164	(31,392)	(20,078)
Income, tax effect	(6,023)	8,162	5,220
Amounts reclassified from accumulated other comprehensive income (loss) to net income	17,141	(23,230)	(14,858)
Other comprehensive income (loss), net of income tax effect	(158,116)	(28,292)	9,025
Ending balance	(163,096)	(4,980)	23,312
Unrealized Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	0	(29,076)	(15,537)
Unrealized gains (losses) arising during period, before tax	0	12,321	(31,772)
Income tax effect	0	(3,204)	8,545
Other comprehensive income (loss) before reclassifications	0	9,117	(23,227)
Reclassification adjustments for losses (gains) included in net income, before tax	0	26,972	13,092
Income, tax effect	0	(7,013)	(3,404)
Amounts reclassified from accumulated other comprehensive income (loss) to net income	0	19,959	9,688
Other comprehensive income (loss), net of income tax effect	0	29,076	(13,539)
Ending balance	$ 0	$ 0	$ (29,076)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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