XML 53 R42.htm IDEA: XBRL DOCUMENT v3.8.0.1
Changes in Accumulated Other Comprehensive Income by Component - Reclassification Adjustments (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Tax benefit $ (1,467) $ 10,262
Net income 72 22,017
Realized Gains (Losses) on Sale of Available-for-sale Securities | Amounts Reclassified from Accumulated Other Comprehensive Income    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Losses from the sale of available-for-sale securities (89) (48)
Tax benefit 19 15
Net income $ (70) $ (33)