Income Taxes (Tables)
3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]  
Schedule of income tax provisions and effective tax rates
The following table sets forth our income tax provisions and effective tax rates for the three months ended March 31, 2015 and 2014 (dollars in thousands):
 
Three Months Ended March 31,
 
2015
 
2014
Income tax provision
$
3,927

 
$
6,377

Effective tax rate
38.0
%
 
38.3
%