XML 42 R30.htm IDEA: XBRL DOCUMENT v3.10.0.1
Investment Securities Available-for-Sale (Details 1)
$ in Thousands
Jun. 30, 2018
USD ($)
Number
Dec. 31, 2017
USD ($)
Number
Available-for-sale securities in a continuous loss position, number of securities | Number 227 183
Available-for-sale securities in a continuous loss position, less than 12 months, estimated fair value $ 349,303 $ 272,060
Available-for-sale securities in a continuous loss position, less than 12 months, unrealized losses 7,489 2,593
Available-for-sale securities in a continuous loss position, 12 months or greater, estimated fair value 208,921 203,046
Available-for-sale securities in a continuous loss position, 12 months or greater, unrealized losses 8,132 4,453
Available-for-sale securities in a continuous loss position, estimated fair value 558,224 475,106
Available-for-sale securities in a continuous loss position, unrealized losses $ 15,621 $ 7,046
US Agency Securities [Member]    
Available-for-sale securities in a continuous loss position, number of securities | Number 56 38
Available-for-sale securities in a continuous loss position, less than 12 months, estimated fair value $ 142,970 $ 102,264
Available-for-sale securities in a continuous loss position, less than 12 months, unrealized losses 3,004 1,073
Available-for-sale securities in a continuous loss position, 12 months or greater, estimated fair value 64,860 55,093
Available-for-sale securities in a continuous loss position, 12 months or greater, unrealized losses 2,463 1,341
Available-for-sale securities in a continuous loss position, estimated fair value 207,830 157,357
Available-for-sale securities in a continuous loss position, unrealized losses $ 5,467 $ 2,414
Residential Mortgage Backed Securities [Member]    
Available-for-sale securities in a continuous loss position, number of securities | Number 157 137
Available-for-sale securities in a continuous loss position, less than 12 months, estimated fair value $ 181,775 $ 152,350
Available-for-sale securities in a continuous loss position, less than 12 months, unrealized losses 3,812 1,306
Available-for-sale securities in a continuous loss position, 12 months or greater, estimated fair value 144,061 147,953
Available-for-sale securities in a continuous loss position, 12 months or greater, unrealized losses 5,669 3,112
Available-for-sale securities in a continuous loss position, estimated fair value 325,836 300,303
Available-for-sale securities in a continuous loss position, unrealized losses $ 9,481 $ 4,418
Municipal Bonds [Member]    
Available-for-sale securities in a continuous loss position, number of securities | Number 13 8
Available-for-sale securities in a continuous loss position, less than 12 months, estimated fair value $ 23,059 $ 17,446
Available-for-sale securities in a continuous loss position, less than 12 months, unrealized losses 672 214
Available-for-sale securities in a continuous loss position, estimated fair value 23,059 17,446
Available-for-sale securities in a continuous loss position, unrealized losses $ 672 $ 214
Corporate Bonds [Member]    
Available-for-sale securities in a continuous loss position, number of securities | Number 1  
Available-for-sale securities in a continuous loss position, less than 12 months, estimated fair value $ 1,499  
Available-for-sale securities in a continuous loss position, less than 12 months, unrealized losses 1  
Available-for-sale securities in a continuous loss position, estimated fair value 1,499  
Available-for-sale securities in a continuous loss position, unrealized losses $ 1