Other Comprehensive Income (Loss) - Changes in Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 1,053,595	$ 1,079,081
Current period changes in other comprehensive income (loss)	11,438	(54,436)
Balance at end of year	1,038,890	1,032,487
Accumulated Other Comprehensive (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(179,296)	(45,919)
Current period changes in other comprehensive income (loss)	11,438	(54,436)
Balance at end of year	(167,858)	(100,355)
Unrealized Gains (Losses) on Debt Securities Available for Sale
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(135,482)	1,644
Current period changes in other comprehensive income (loss)	12,133	(57,818)
Balance at end of year	(123,349)	(56,174)
Unrealized Gains (Losses) on Swaps
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	504	(4,917)
Current period changes in other comprehensive income (loss)	(865)	3,157
Balance at end of year	(361)	(1,760)
Employee Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(44,318)	(42,646)
Current period changes in other comprehensive income (loss)	170	225
Balance at end of year	$ (44,148)	$ (42,421)