v3.8.0.1
Fair Value Measurements - Carrying Amounts and Estimated Fair Value of Financial Instruments (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Sep. 30, 2016
Dec. 31, 2015
ASSETS        
Cash and cash equivalents $ 123,210 $ 597,946 $ 496,813 $ 215,748
Securities available-for-sale (“AFS”) 471,502 509,578    
Loans, net 3,239,374 2,540,309    
Loans held for sale 153,405 250,942    
Investment in FHLB stock 17,250 33,750    
Liabilities:        
Deposits 3,268,726 2,426,795    
Borrowings 421,000 1,250,000    
Assets Fair Value:        
Cash and cash equivalents 123,210 597,946    
Securities available-for-sale (“AFS”) 471,502 509,578    
Loans, net 3,381,237 2,529,360    
Loans held for sale 155,246 253,953    
Investment in FHLB stock 17,250 33,750    
Liabilities Fair Value:        
Deposits 3,269,046 2,426,923    
Borrowings 421,000 1,250,000    
Fair Value Measurement Level 1        
ASSETS        
Securities available-for-sale (“AFS”) 495 297    
Investment in FHLB stock 0 0    
Assets Fair Value:        
Cash and cash equivalents 123,210 597,946    
Securities available-for-sale (“AFS”) 495 297    
Loans, net 0 0    
Loans held for sale 0 0    
Investment in FHLB stock 0 0    
Liabilities Fair Value:        
Deposits 2,385,687 1,797,329    
Borrowings 0 0    
Fair Value Measurement Level 2        
ASSETS        
Securities available-for-sale (“AFS”) 432,448 468,909    
Investment in FHLB stock 17,250 33,750    
Assets Fair Value:        
Cash and cash equivalents 0 0    
Securities available-for-sale (“AFS”) 432,448 468,909    
Loans, net 0 0    
Loans held for sale 0 0    
Investment in FHLB stock 17,250 33,750    
Liabilities Fair Value:        
Deposits 883,359 629,594    
Borrowings 406,000 1,250,000    
Fair Value Measurement Level 3        
ASSETS        
Securities available-for-sale (“AFS”) 38,559 40,372    
Investment in FHLB stock 0 0    
Assets Fair Value:        
Cash and cash equivalents 0 0    
Securities available-for-sale (“AFS”) 38,559 40,372    
Loans, net 3,381,237 2,529,360    
Loans held for sale 155,246 253,953    
Investment in FHLB stock 0 0    
Liabilities Fair Value:        
Deposits 0 0    
Borrowings $ 15,000 $ 0