Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net interest income	$ 139,904		$ 112,676		$ 277,499	$ 212,020
Provision for credit losses	8,456		1,148		9,458	(818)
Noninterest income	53,553		53,253		104,930	107,368
Noninterest expense	132,218		123,767		260,545	245,286
Income before income taxes	52,783		41,014		112,426	74,920
Income taxes	7,746		6,730		17,089	11,425
Net Income	45,037	$ 50,300	34,284	$ 29,211	95,337	63,495
Selected Financial Information
Total assets	18,422,626		16,951,510		18,422,626	16,951,510	$ 18,015,478
Depreciation and amortization	8,782		10,244		16,448	20,685
General Banking [Member]
Segment Reporting Information [Line Items]
Net interest income	138,378		111,352		274,537	209,343
Provision for credit losses	8,435		1,149		9,369	(810)
Noninterest income	28,995		30,545		57,354	61,480
Noninterest expense	113,694		106,352		223,284	209,685
Income before income taxes	45,244		34,396		99,238	61,948
Income taxes	5,855		5,074		13,779	8,175
Net Income	39,389		29,322		85,459	53,773
Selected Financial Information
Total assets	18,121,681		16,661,715		18,121,681	16,661,715
Depreciation and amortization	8,570		9,995		16,013	20,171
Wealth Management [Member]
Segment Reporting Information [Line Items]
Net interest income	1,529		1,326		2,968	2,682
Provision for credit losses	21		(1)		89	(8)
Noninterest income	8,834		8,999		17,553	18,098
Noninterest expense	7,961		8,131		15,995	16,413
Income before income taxes	2,381		2,195		4,437	4,375
Income taxes	597		548		1,110	1,094
Net Income	1,784		1,647		3,327	3,281
Selected Financial Information
Total assets	206,556		199,752		206,556	199,752
Depreciation and amortization	67		73		136	146
Insurance [Member]
Segment Reporting Information [Line Items]
Net interest income	(3)		(2)		(6)	(5)
Noninterest income	15,724		13,709		30,023	27,790
Noninterest expense	10,563		9,284		21,266	19,188
Income before income taxes	5,158		4,423		8,751	8,597
Income taxes	1,294		1,108		2,200	2,156
Net Income	3,864		3,315		6,551	6,441
Selected Financial Information
Total assets	94,389		90,043		94,389	90,043
Depreciation and amortization	$ 145		$ 176		$ 299	$ 368