Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Additional Information (Details)

v3.4.0.3
Derivatives - Additional Information (Details)
1 Months Ended 3 Months Ended
Jul. 31, 2015
USD ($)
$ / shares
shares
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Jan. 31, 2015
USD ($)
Counterparty
Warrant        
Derivatives Fair Value [Line Items]        
Common shares issuable upon conversion of warrants | shares 1,250,764      
Class of warrant exercisable period 3 years      
Warrants exercise price | $ / shares $ 22.50      
Fair value derivative, liabilities $ 1,500,000 $ 100,000 $ 600,000  
Fair value derivative, gain   500,000    
Interest Rate Swaps        
Derivatives Fair Value [Line Items]        
Derivative notional amount   109,143,000   $ 109,100,000
Number of counterparties | Counterparty       4
Unrealized fair market value gain (loss)   6,200,000    
Additional amount to be classified as an increase to interest expense during next 12 months   1,800,000    
Undesignated derivative instruments recorded by the Company   $ 0