XML 62 R52.htm IDEA: XBRL DOCUMENT v3.5.0.2
Securities - Amortized Cost and Fair Value of Securities Available for Sale and Held to Maturity (Detail) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost within one year $ 6,921 $ 7,192
Amortized cost one to five years 52,105 38,197
Amortized cost for five to ten years 12,934 16,807
Amortized cost for after ten years 18,280 17,605
Total amortized cost 90,240 79,801
Total available for sale investment securities, Amortized Cost 550,456 444,062
Within one year, amortized cost 0 0
One to five years, amortized cost 22,801 17,815
Five to ten years, amortized cost 88,924 106,167
After ten years, amortized cost 46,818 28,208
Total amortized cost 158,543 152,190
Total held to maturity investment securities, amortized cost 187,027 187,629
Fair value within one year 6,953 7,232
Fair value for one to five years 52,482 38,894
Fair value for five to ten years 13,325 17,152
Fair value for after ten years 18,796 17,797
Total fair value 91,556 81,075
Investment securities, available for sale 557,213 444,982
Within one year, fair value 0 0
One to five years, fair value 23,965 18,403
five to ten years, fair value 93,501 110,026
After ten years, fair value 47,034 28,976
Total fair value 164,500 157,405
Held-to-maturity, Fair Value 194,294 193,703
Federal Agency Collateralized Mortgage Obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Total available for sale investment securities, Amortized Cost 188,072 157,291
Total held to maturity investment securities, amortized cost 6,828 9,051
Investment securities, available for sale 189,684 156,203
Held-to-maturity, Fair Value 6,972 8,954
Federal Agency Mortgage-backed Pools [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Total available for sale investment securities, Amortized Cost 272,144 206,970
Total held to maturity investment securities, amortized cost 21,656 26,388
Investment securities, available for sale 275,973 207,704
Held-to-maturity, Fair Value $ 22,822 $ 27,344