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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted

Earnings per common share have been computed based on the following:

    Years Ended December 31,
    2015   2014   2013
    (In thousands, Except per Share Amounts)
Net income   $        41,311   $      18,565   $        19,925
Preferred stock dividends     112     112     141
Net income available to common stockholders   $ 41,199   $ 18,453   $ 19,784
Average number of common shares outstanding     29,938     23,030     16,349
       Effect of dilutive options     346     449     37
Average number of common shares outstanding used to                  
       calculate diluted earnings per common share     30,284     23,479     16,386
Anti-dilutive common shares outstanding     -     -     14
Earnings per common share:                  
       Basic   $ 1.38   $ 0.80   $ 1.21
       Diluted   $ 1.36   $ 0.79   $ 1.21