Business Combinations - Assets Acquired and Liabilities Assumed in Acquisition (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Oct. 08, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Goodwill			$ 1,868,936	$ 1,459,008	$ 1,382,442
Bank Leumi USA
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 443,588
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities	6,239
Available for sale debt securities	505,928
Held to maturity debt securities	806,627
Loans	5,914,389
Allowance for loan losses	(70,319)
Loans, net	5,844,070
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	38,827
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Right of Use Asset	49,273
Bank owned life insurance	126,861
Accrued interest receivable	25,717
Goodwill	400,582
Other intangible assets	153,380
Other assets	160,921
Total assets acquired	8,562,013
Deposits:
Non-interest bearing	4,511,537
Interest bearing:
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Savings, NOW And Money Market	2,224,834
Time	293,626
Total deposits	7,029,997
Short-term borrowings	103,794
Lease liabilities	79,683
Accrued expense and other liabilities	117,269
Total liabilities assumed	7,330,743
Common stock issued in acquisition	1,117,829
Cash paid in acquisition	$ 113,441
Dudley Ventures
Interest bearing:
Common stock issued in acquisition		$ 3,750
Cash paid in acquisition		$ 11,300