Fair Value Measurements - Financial Instruments Not Measured at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Financial Assets:
Cash and cash equivalents	$ 1,234,773	$ 1,465,022	$ 1,389,876
Deposits with banks and short-term investments	779,246	1,347,544	1,134,463
Restricted cash	625,381	617,448	$ 44,488
Other fees and customers and other receivables	425,904	560,391
Financial Liabilities:
Deposits and other customer payables	921,834	1,442,701
Senior debt	1,687,714	1,685,227
Carrying Value [Member]
Financial Assets:
Cash and cash equivalents	1,234,773	1,465,022
Deposits with banks and short-term investments	779,246	1,347,544
Restricted cash	625,381	617,448
Financing receivables	97,964	123,189
Customer loans	128,890	122,229
Other fees and customers and other receivables	425,904	560,391
Financial Liabilities:
Deposits and other customer payables	921,834	1,442,701
Senior debt	1,687,714	1,685,227
Fair Value [Member]
Financial Assets:
Deposits with banks and short-term investments	779,246	1,347,544
Restricted cash	625,381	617,448
Cash and cash equivalents	1,234,773	1,465,022
Financing receivables	98,362	125,024
Customer loans	128,890	122,229
Other fees and customers and other receivables	425,904	560,391
Financial Liabilities:
Deposits and other customer payables	921,834	1,442,701
Senior debt	1,601,917	1,884,690
Fair Value [Member] | Level 1 [Member]
Financial Assets:
Deposits with banks and short-term investments	779,246	1,347,544
Restricted cash	625,381	617,448
Cash and cash equivalents	1,234,773	1,465,022
Other fees and customers and other receivables	425,904	560,391
Financial Liabilities:
Deposits and other customer payables	921,834	1,442,701
Fair Value [Member] | Level 2 [Member]
Financial Liabilities:
Senior debt	1,601,917	1,884,690
Fair Value [Member] | Level 3 [Member]
Financial Assets:
Financing receivables	98,362	125,024
Customer loans	$ 128,890	$ 122,229