Goodwill and Other Intangible Assets - Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Total	$ 133,059	$ 106,235
Core Deposit Premium
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	189,996	153,496
Accumulated amortization	(70,281)	(59,634)
Total	119,715	93,862	$ 97,363
Books of Business Intangible
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	22,068	19,937
Accumulated amortization	(8,724)	(7,564)
Total	$ 13,344	$ 12,373	$ 13,747