Other Income and Other Expense - Other Income and Other Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other income:
Credit-related fee income	$ 90,816	$ 70,387	$ 86,792
Credit card interchange fee income	69,963
Merchant discount fee income	61,442
Other expense:
Professional services	348,360	240,047	330,900
Amortization of capitalized mortgage servicing rights	$ 89,767	$ 84,821	$ 71,888