XML 47 R37.htm IDEA: XBRL DOCUMENT v2.4.0.8
Comprehensive Income and Accumulated Other Comprehensive Income - Components of Other Comprehensive Income (Loss) and Related Income Tax Expense (Benefits) (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income tax (expense) benefit $ 3,003 $ 588 $ 5,232 $ 2,460
Components of other comprehensive income (loss) [Member]
        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other comprehensive income (loss), before taxes (6,248) 774 (7,085) 692
Income tax (expense) benefit (2,188) 271 (2,480) 242
Other comprehensive income (loss), net of taxes (4,060) 503 (4,605) 450
Components of other comprehensive income (loss) [Member] | Changes in Net Unrealized Gains on Investment Securities Having No Credit Losses Recognized in the Consolidated Statement of Income [Member]
        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other comprehensive income (loss), before taxes (6,248) 774 (7,085) 691
Income tax (expense) benefit (2,188) 271 (2,480) 242
Other comprehensive income (loss), net of taxes (4,060) 503 (4,605) 449
Components of other comprehensive income (loss) [Member] | Changes in Net Unrealized Gains on Investment Securities Having Credit Losses Recognized in the Consolidated Statement of Income [Member]
        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other comprehensive income (loss), before taxes        1
Income tax (expense) benefit          
Other comprehensive income (loss), net of taxes        $ 1