XML 127 R116.htm IDEA: XBRL DOCUMENT v3.24.2.u1
INCOME TAXES - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Income Tax Contingency [Line Items]          
Maximum corporate tax rate     37.50%    
Net deferred tax asset $ 142,700   $ 142,700   $ 150,100
Valuation allowance 141,100   141,100   139,200
Income tax expense 25,541 $ 30,284 $ 49,496 $ 62,219  
Estimated annual effective tax rate, excluding entities from which a tax benefit cannot be recognized and discrete items     24.10% 30.10%  
Current income tax expense 2,900 1,500 $ 5,100 $ 4,000  
Santander [Member]          
Income Tax Contingency [Line Items]          
UTBs 800   800    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense     200    
Subsidiaries [Member]          
Income Tax Contingency [Line Items]          
Net deferred tax asset 142,700   142,700   150,100
Valuation allowance 113,200   113,200   $ 111,400
Parent Company [Member]          
Income Tax Contingency [Line Items]          
Income tax expense $ 0 $ 0 $ 1 $ 1