Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments (Details)

v3.7.0.1
Derivative Instruments (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Apr. 24, 2017
Dec. 31, 2016
Dec. 20, 2012
Derivative [Line Items]          
Derivative, notional amount $ 187,500        
Derivative, fixed interest rate 2.3525%       0.8525%
Change in fair value of derivative instrument, net of tax $ 327 $ (249)      
Interest Rate Derivative Assets, at Fair Value 4,077     $ 3,577  
Interest Rate Derivative Liabilities, at Fair Value   $ 552      
Estimated unrealized income to be realized in the next twelve months $ 500        
Scenario, Forecast [Member]          
Derivative [Line Items]          
Derivative, notional amount     $ 250,000    
Derivative, fixed interest rate     1.05%