Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Schedule of Derivative Liability at Fair Value (Details)

v3.7.0.1
Derivative Instruments - Schedule of Derivative Liability at Fair Value (Details) - Interest Rate Swap [Member] - USD ($)
Jun. 30, 2017
Dec. 31, 2016
Jul. 22, 2016
Sep. 15, 2015
Derivatives, Fair Value [Line Items]        
Derivative, Notional Amount $ 300,000,000      
Interest rate swaps 6,857,000 $ 7,611,000    
Prepaid expenses and other assets [Member]        
Derivatives, Fair Value [Line Items]        
Interest rate swaps 6,857,000 7,611,000    
2015 Term Loan [Member]        
Derivatives, Fair Value [Line Items]        
Derivative, Notional Amount       $ 150,000,000
2015 Term Loan [Member] | Prepaid expenses and other assets [Member]        
Derivatives, Fair Value [Line Items]        
Interest rate swaps 578,000 417,000    
2016 Term Loan [Member]        
Derivatives, Fair Value [Line Items]        
Derivative, Notional Amount     $ 150,000,000  
2016 Term Loan [Member] | Prepaid expenses and other assets [Member]        
Derivatives, Fair Value [Line Items]        
Interest rate swaps $ 6,279,000 $ 7,194,000