Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,161,957	$ 1,345,691	$ 1,319,112	$ 1,270,069
Unrealized gains (losses) on debt securities available for sale
Unrealized holding gains (losses) on debt securities available for sale, net of tax	(69,306)	(12,296)	(211,988)	(35,606)
Unrealized losses on debt securities transferred to held to maturity from available for sale, net of tax	0	0	(34,644)	0
Amounts reclassified from AOCI, net of tax	(53)	(4)	20	16
Amortization of unrealized losses on securities transferred to held to maturity, net of tax	(1,291)	0	(3,500)	0
Unrealized gains (losses) on cash flow hedges
Unrealized holding gains (losses) on cash flow hedges, net of tax	(10,192)	(5)	(21,587)	336
Amounts reclassified from AOCI, net of tax	(266)	(206)	498	(611)
Ending balance	1,106,588	1,333,076	1,106,588	1,333,076
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(211,107)	10,725	(23,758)	33,309
Unrealized gains (losses) on cash flow hedges
Accumulated other comprehensive income (loss) ending balance period, before tax	(404,213)	(1,911)	(404,213)	(1,911)
Accumulated other comprehensive income (loss) ending balance period, tax effect	115,218	545	115,218	545
Ending balance	(288,995)	(1,366)	(288,995)	(1,366)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) beginning balance period, before tax	(277,310)	17,013	(32,272)	49,644
Accumulated other comprehensive income (loss) beginning balance period, tax effect	79,047	(4,850)	9,199	(14,151)
Beginning balance	(198,263)	12,163	(23,073)	35,493
Unrealized gains (losses) on debt securities available for sale
Unrealized holding gains (losses) on debt securities available for sale, before tax	(96,937)	(17,198)	(296,507)	(49,801)
Unrealized holding gains (losses) on debt securities available for sale, tax effect	27,631	4,902	84,519	14,195
Unrealized holding gains (losses) on debt securities available for sale, net of tax	(69,306)	(12,296)	(211,988)	(35,606)
Unrealized losses on debt securities transferred to held to maturity from available for sale, before tax			(48,456)	0
Unrealized losses on debt securities transferred to held to maturity from available for sale, tax effect	0	0	13,812	0
Unrealized losses on debt securities transferred to held to maturity from available for sale, net of tax			(34,644)	0
Amounts reclassified from AOCI, before tax	74	5	(28)	(23)
Reclassification adjustment for realized (gains) losses on debt securities available for sale included in net income, tax expense (benefit)	(21)	(1)	8	7
Amounts reclassified from AOCI, net of tax	53	4	(20)	(16)
Amortization of unrealized losses on securities transferred to held to maturity, before tax	1,806	0	4,896	0
Amortization of unrealized losses on securities transferred to held to maturity, tax effect	515	0	1,396	0
Amortization of unrealized losses on securities transferred to held to maturity, net of tax	1,291	0	3,500	0
Unrealized gains (losses) on cash flow hedges
Accumulated other comprehensive income (loss) ending balance period, before tax	(372,367)	(180)	(372,367)	(180)
Accumulated other comprehensive income (loss) ending balance period, tax effect	106,142	51	106,142	51
Ending balance	(266,225)	(129)	(266,225)	(129)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) beginning balance period, before tax	(17,963)	(2,012)	(958)	(3,055)
Accumulated other comprehensive income (loss) beginning balance period, tax effect	5,119	574	273	871
Beginning balance	(12,844)	(1,438)	(685)	(2,184)
Unrealized gains (losses) on cash flow hedges
Unrealized holding gains (losses) on cash flow hedges, before tax	(14,253)	(7)	(30,191)	470
Unrealized holding gains (losses) on cash flow hedges, tax effect	4,061	2	8,604	(134)
Unrealized holding gains (losses) on cash flow hedges, net of tax	(10,192)	(5)	(21,587)	336
(Gain) loss reclassified from OCI to interest expense, net of tax	370	288	(697)	854
Amounts reclassified from AOCI, tax effect	(104)	(82)	199	(243)
Amounts reclassified from AOCI, net of tax	266	206	(498)	611
Accumulated other comprehensive income (loss) ending balance period, before tax	(31,846)	(1,731)	(31,846)	(1,731)
Accumulated other comprehensive income (loss) ending balance period, tax effect	9,076	494	9,076	494
Ending balance	$ (22,770)	$ (1,237)	$ (22,770)	$ (1,237)