Fair Value Measurements (Items for which Fair Value is Only Disclosed) (Details) - USD ($) $ in Thousands		Sep. 30, 2025		Dec. 31, 2024		Sep. 30, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		$ 192,331		$ 113,889		$ 210,743	$ 90,184
Loans, net of allowance for credit losses on loans		5,086,006		5,095,878
FHLB stock		36,331		49,817
Investment in BOLI		114,240		106,777
Time deposits	[1]	1,233,998		1,489,648
FHLB advances		791,000		1,125,000
Junior subordinated debentures		22,681		22,681
Basis adjustment associated with fair value hedges		(255)		(1,481)
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		192,331		113,889
Loans, net of allowance for credit losses on loans		5,086,006		5,095,878
FHLB stock		36,331		49,817
Investment in BOLI		114,240		106,777
Non-maturity deposits		3,988,838		3,626,152
Time deposits		1,233,998		1,489,648
FHLB advances		791,000		1,125,000
Junior subordinated debentures		22,681		22,681
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		192,331		113,889
Loans, net of allowance for credit losses on loans		4,957,966	[2]	4,952,110	[3]
FHLB stock		36,331		49,817
Investment in BOLI		114,240		106,777
Non-maturity deposits		3,988,838		3,626,152
Time deposits		1,231,117		1,479,267
FHLB advances		794,316		1,125,819
Junior subordinated debentures		19,916		19,602
Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		192,331		113,889
Loans, net of allowance for credit losses on loans		0		0
FHLB stock		0		0
Investment in BOLI		0		0
Non-maturity deposits		0		0
Time deposits		0		0
FHLB advances		0		0
Junior subordinated debentures		0		0
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		0		0
Loans, net of allowance for credit losses on loans		0		0
FHLB stock		36,331		49,817
Investment in BOLI		114,240		106,777
Non-maturity deposits		3,988,838		3,626,152
Time deposits		1,231,117		1,479,267
FHLB advances		794,316		1,125,819
Junior subordinated debentures		19,916		19,602
Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		0		0
Loans, net of allowance for credit losses on loans		4,957,966	[2]	4,952,110	[3]
FHLB stock		0		0
Investment in BOLI		0		0
Non-maturity deposits		0		0
Time deposits		0		0
FHLB advances		0		0
Junior subordinated debentures		$ 0		$ 0

[1] Includes wholesale brokered time deposit balances of $0 and $297.5 million, respectively, as of September 30, 2025 and December 31, 2024.

[2] The estimated fair value excludes a $255 thousand negative basis adjustment associated with fair value hedges. See Note 8 for additional disclosure.

[3] The estimated fair value excludes a $1.5 million negative basis adjustment associated with fair value hedges. See Note 8 for additional disclosure.