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Mergers and Acquisitions- Summary of Supplemental Pro Forma Information Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Accrued severance and other benefits	$ 26,944	$ 42,218	$ 26,944	$ 42,218	$ 29,736	$ 37,945	$ 49,860	$ 10,835
Strategic initiative charges	1,988	7,808	8,184	52,483
Payments for Restructuring	(4,545)	(15,029)	(11,538)	(16,795)
Adjustments	(235)	(421)	(7,647)	(4,305)
Employee Severance [Member]
Business Acquisition [Line Items]
Accrued severance and other benefits	3,169	24,514	3,169	24,514	5,961	7,583	32,156	10,835
Strategic initiative charges	1,988	7,808	8,184	34,779
Payments for Restructuring	(4,545)	(15,029)	(11,538)	(16,795)
Adjustments	(235)	(421)	(1,060)	(4,305)
Occupancy
Business Acquisition [Line Items]
Accrued severance and other benefits	23,775	17,704	23,775	17,704	$ 23,775	$ 30,362	$ 17,704	$ 0
Strategic initiative charges	0	0	0	17,704
Payments for Restructuring	0	0	0	0
Adjustments	0	0	(6,587)	0
Sterling
Business Acquisition [Line Items]
Merger-related expenses	40,840	66,640	70,213	175,135
Sterling \| Employee Severance [Member]
Business Acquisition [Line Items]
Adjustments				4,300
Compensation and benefits \| Sterling
Business Acquisition [Line Items]
Merger-related expenses	6,675	24,117	17,787	65,702
Occupancy \| Sterling
Business Acquisition [Line Items]
Merger-related expenses	495	30,999	1,230	31,355
Technology and equipment \| Sterling
Business Acquisition [Line Items]
Merger-related expenses	6,837	812	5,128	19,897
Business Combination, Increase (Decrease) In Acquisition Related Costs			4,800
Professional and outside services \| Sterling
Business Acquisition [Line Items]
Merger-related expenses	18,939	3,824	38,948	48,281
Marketing \| Sterling
Business Acquisition [Line Items]
Merger-related expenses	826	84	961	135
Other expense \| Sterling
Business Acquisition [Line Items]
Merger-related expenses	7,068	$ 6,804	$ 6,159	$ 9,765
Business Combination, Increase (Decrease) In Acquisition Related Costs	$ 1,700