XML 72 R62.htm IDEA: XBRL DOCUMENT v3.10.0.1
FAIR VALUES OF FINANCIAL INSTRUMENTS - Reconciliation of Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($)
 3 Months Ended 9 Months Ended 15 Months Ended
Mar. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
Total gains or losses (realized/unrealized):                  
MSRs sold   $ 0 $ 0 $ 28,549,000 $ 39,186,000        
Discontinued Operations, Disposed of by Sale | Banc Home Loan                  
Total gains or losses (realized/unrealized):                  
Servicing rights carried at fair value     37,700,000   37,700,000        
MSRs sold $ 37,800,000 0 0 0 37,772,000 $ 37,772,000      
Loans held-for-sale, carried at fair value   20,290,000   20,290,000     $ 38,696,000    
Mortgage servicing rights                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                  
Balance at beginning of period   2,062,000 42,109,000 31,852,000 76,121,000        
Total gains or losses (realized/unrealized):                  
Included in earnings—fair value adjustment   33,000 (1,905,000) (1,057,000) (4,984,000)        
Additions   0 574,000 0 12,126,000        
Sales, paydowns, settlements, and other   (66,000) (2,063,000) (28,766,000) (44,548,000)        
Balance at end of period   2,029,000 38,715,000 2,029,000 38,715,000 2,062,000      
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                  
Balance at beginning of period   33,234,000 73,545,000 98,940,000 58,260,000        
Total gains or losses (realized/unrealized):                  
Included in earnings—fair value adjustment   (22,000) (809,000) (276,000) (794,000)        
Additions   711,000 24,537,000 28,096,000 59,768,000        
Sales, paydowns, settlements, and other   (8,167,000) (12,909,000) (101,004,000) (32,870,000)        
Balance at end of period   25,756,000 84,364,000 25,756,000 84,364,000 33,234,000      
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities | Discontinued Operations, Disposed of by Sale | Banc Home Loan                  
Total gains or losses (realized/unrealized):                  
Loans held-for-sale, carried at fair value   $ 17,700,000 $ 41,200,000 $ 17,700,000 $ 41,200,000 $ 20,900,000 $ 32,300,000 $ 52,100,000 $ 58,300,000