Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments (Details)

v3.5.0.2
Derivative Instruments (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Apr. 24, 2017
Dec. 31, 2015
Dec. 20, 2012
Derivative [Line Items]              
Derivative, notional amount $ 187,500   $ 187,500        
Derivative, fixed interest rate 2.3525%   2.3525%       0.8525%
Change in fair value of derivative instrument, net of tax $ 857 $ (238) $ (630) $ (720)      
Interest Rate Derivative Liabilities, at Fair Value $ 1,160 $ 949 1,160 $ 949   $ 169  
Estimated unrealized loss to be realized in the next twelve months     $ 600        
Scenario, Forecast [Member]              
Derivative [Line Items]              
Derivative, notional amount         $ 250,000    
Derivative, fixed interest rate         1.05%