Quarterly report pursuant to Section 13 or 15(d)

Share-Based Payments - Employee Activity Non-vested Shares (Details)

v3.2.0.727
Share-Based Payments - Employee Activity Non-vested Shares (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense $ 1,890 $ 1,677 $ 3,676 $ 3,329
Employee Non-vested Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grants, vesting period (in years)     3 years  
Outstanding and non-vested, beginning of period (in shares) 197   190  
Stock Issued During Period, Shares, Restricted Stock Award, Gross 0   100  
Shares Vested in Period 0   (92)  
Shares Forfeited in Period (3)   (4)  
Outstanding and non-vested, end of period (in shares) 194   194  
Outstanding and non-vested, weighted-average grant date fair value, beginning of period $ 46   $ 40  
Grants in Period, Weighted Average Grant Date Fair Value 0   51  
Vested in Period, Weighed-average grant date fair value 0   39  
Forfeited in period (in dollars per share) 46   44  
Outstanding and non-vested, weighted-average grant date fair value, end of period $ 46   $ 46  
Outstanding and non-vested, aggregate grant date fair value $ 8,872   $ 8,872  
Share-based compensation expense 1,022 895 2,010 1,820
Tax benefit related to share-based expense 393 341 772 693
Unrecognized share-based compensation, net of estimated forfeitures $ 7,231 $ 6,087 $ 7,231 $ 6,087