Commitments and Contingencies - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Loss Contingencies [Line Items]
Allowance for loan losses	$ 457,010,000	$ 414,956,000	$ 443,424,000	$ 427,597,000
Covered chargebacks, net of reserves			15,300,000
Minimum
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	0
Maximum
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	5,000,000
Fair Value, Measurements, Nonrecurring Basis | Qualpay receivable | Other Operating Income (Expense)
Loss Contingencies [Line Items]
Assets, fair value adjustment	2,700,000
Fair Value, Measurements, Nonrecurring Basis | Level 3
Loss Contingencies [Line Items]
Qualpay receivable	31,109,000
Guarantee obligations
Loss Contingencies [Line Items]
Maximum potential exposure for sponsored transactions	30,120,000,000	$ 28,610,000,000
Total letters of credit and unfunded lending commitments	16,649,944,000		17,181,946,000
Unfunded Loan Commitment
Loss Contingencies [Line Items]
Allowance for loan losses	$ 57,500,000		$ 57,500,000