XML 131 R129.htm IDEA: XBRL DOCUMENT v3.2.0.727
Fair Value Measurement - Reconciliation of Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3) on Recurring Basis (Detail) - Mortgage servicing rights [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Balance at beginning of period $ 7,057 $ 6,107 $ 7,378 $ 6,165
Issuances 235 153 421 276
Change included in earnings 522 (351) 15 (532)
Balance at end of period $ 7,814 $ 5,909 $ 7,814 $ 5,909