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Income Taxes (Income Tax Expense from Continuing Operations) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current      
Federal $ 11,605 $ 9,814 $ 10,282
State 511 396 96
Total Current 12,116 10,210 10,378
Deferred      
Federal (3,078) (125) 176
State 253 39 206
Foreign (4) (20) (96)
Total Deferred (2,829) (106) 286
Income Tax Expense, Total $ 9,287 $ 10,104 $ 10,664