Mergers and Acquisitions- Summary of Supplemental Pro Forma Information Adjustments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) location	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) location	Jun. 30, 2021 USD ($)
Business Acquisition [Line Items]
Locations closing under consolidation plan | location	14		14
Sterling
Business Acquisition [Line Items]
Merger-related expenses	$ 66,640	$ 17,047	$ 175,135	$ 17,047
Approximate reduction in real estate	45.00%		45.00%
Sterling | Exit costs and accelerated depreciation, and property and equipment
Business Acquisition [Line Items]
Merger-related expenses	$ 7,700
Compensation and benefits | Sterling
Business Acquisition [Line Items]
Merger-related expenses	24,117	466	$ 65,702	466
Occupancy | Sterling
Business Acquisition [Line Items]
Merger-related expenses	30,999	0	31,355	0
Occupancy | Sterling | Right Of Use Assets
Business Acquisition [Line Items]
Merger-related expenses	23,100
Technology and equipment | Sterling
Business Acquisition [Line Items]
Merger-related expenses	812	0	19,897	0
Professional and outside services | Sterling
Business Acquisition [Line Items]
Merger-related expenses	3,824	16,287	48,281	16,287
Marketing | Sterling
Business Acquisition [Line Items]
Merger-related expenses	84	0	135	0
Other expense | Sterling
Business Acquisition [Line Items]
Merger-related expenses	$ 6,804	$ 294	$ 9,765	$ 294