Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Earnings per Share - Reconciliation of Components Used to Derive Basic and Diluted EPS (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Earnings Per Share [Abstract]                      
Net income $ 11,384 $ 16,081 $ 15,548 $ 14,855 $ 11,497 $ 14,923 $ 14,457 $ 13,783 $ 57,868 $ 54,660 $ 56,489
Less: income allocated to unvested restricted shares                 359 339  
Income from continuing operations, net of taxes                     56,489
Income (loss) from discontinued operations                     457
Net Income (Loss) Available to Common Stockholders, Basic                 57,509 54,321 56,032
Income allocated to common shares                 $ 57,509 $ 54,321 $ 56,032
Weighted-average shares for basic EPS (shares)                 31,924,863 32,071,585 31,899,582
Effect of dilutive securities - options, warrants and unvested restricted stock (shares)                 126,470 178,333 149,122
Weighted-average shares for diluted EPS                 32,051,333 32,249,918 32,048,704
Net income per share, basic (in usd per share)                 $ 1.81 $ 1.71  
Net income per share, diluted (in usd per share)                 1.80 1.70  
Income from continuing operations, net of taxes (in usd per share)                     $ 1.77
Effect of dilutive securities (in USD per share)                 0.01 0.01  
Loss from discontinued operations, net of taxes (in usd per share)                     0.01
Basic earnings per share (in usd per share) $ 0.37 $ 0.50 $ 0.48 $ 0.46 $ 0.36 $ 0.46 $ 0.45 $ 0.43 1.80 1.70 1.76
Income from continuing operations, net of taxes (in usd per share)                     1.76
Net loss from discontinued operation per diluted share (in usd per share)                     0.01
Diluted earnings per share (in usd per share) $ 0.37 $ 0.50 $ 0.48 $ 0.46 $ 0.36 $ 0.46 $ 0.45 $ 0.43 $ 1.79 $ 1.69 $ 1.75