Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Reconciliation of Components Used to Derive Basic and Diluted EPS (Detail)

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Earnings Per Share - Reconciliation of Components Used to Derive Basic and Diluted EPS (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Jun. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Earnings Per Share [Abstract]          
Income from continuing operations, net of taxes $ 13,264   $ 10,315 $ 35,764 $ 29,769
(Loss) income from discontinued operations, net of taxes     70 (444) 161
Net income 13,264   10,385 35,320 29,930
Income from continuing operations, net of taxes 13,264   10,315 35,764 29,769
(Loss) income from discontinued operations, net of taxes     70 (444) 161
Net income $ 13,264   $ 10,385 $ 35,320 $ 29,930
Income from continuing operations, net of taxes 31,708,581   31,621,049 31,683,288 31,583,897
Basic EPS 31,708,581   31,621,049 31,683,288 31,583,897
Effect of dilutive securities - options, warrants and unvested restricted stock 292,838   111,955 284,588 68,898
Income from continuing operations, net of taxes 32,001,419   31,733,004 31,967,876 31,652,795
Diluted EPS 32,001,419   31,733,004 31,967,876 31,652,795
Per Share Amount, Income from continuing operations, net of taxes $ 0.42   $ 0.33 $ 1.13 $ 0.94
Per Share Amount, (Loss) income from discontinued operations, net of taxes       $ (0.02) $ 0.01
Basic earnings per share $ 0.42   $ 0.33 $ 1.11 $ 0.95
Per Share Amount, Effect of dilutive securities - options, warrants and unvested restricted stock              
Per Share Amount, Income from continuing operations, net of taxes $ 0.41   $ 0.33 $ 1.12 $ 0.94
Per Share Amount, (Loss) income from discontinued operations, net of taxes   $ 0.01   $ (0.02) $ 0.01
Diluted earnings per share $ 0.41   $ 0.33 $ 1.10 $ 0.95