v3.6.0.2
Credit Facility (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Feb. 29, 2016
Aug. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Jan. 31, 2016
Credit Facility            
Additional debt issuance costs incurred     $ 124 $ 62 $ 711  
Amortization of debt issuance costs            
2017     241      
2018     216      
Amortization of debt issuance costs     $ 457      
Line of Credit            
Credit Facility            
Interest rate percentage     3.30%      
Additional debt issuance costs incurred $ 124 $ 62        
Amortization and interest expense capitalized     $ 823 648    
Amortization and interest expense recorded     $ 309   $ 34  
Line of Credit | Minimum            
Credit Facility            
Interest rate percentage     3.00%      
Line of Credit | Maximum            
Credit Facility            
Interest rate percentage     3.60%      
Line of Credit | LIBOR | Minimum            
Credit Facility            
Spread on floating interest rate (as a percent)     2.50%      
Line of Credit | LIBOR | Maximum            
Credit Facility            
Spread on floating interest rate (as a percent)     3.50%      
Line of Credit | Prime Rate | Minimum            
Credit Facility            
Spread on floating interest rate (as a percent)     1.50%      
Line of Credit | Prime Rate | Maximum            
Credit Facility            
Spread on floating interest rate (as a percent)     2.50%      
Revolving Line of Credit            
Credit Facility            
Current issued borrowing capacity $ 69,750   $ 69,750     $ 46,500
Maximum borrowing capacity with an option to increase the available amount upon the satisfaction of certain conditions     86,500      
Outstanding balance     $ 15,000 15,000    
Revolving Line of Credit | Minimum            
Credit Facility            
Fee on unused portion of Revolving Line of Credit(as a percent)     0.375%      
Revolving Line of Credit | Maximum            
Credit Facility            
Fee on unused portion of Revolving Line of Credit(as a percent)     0.50%      
Term Loan            
Credit Facility            
Current issued borrowing capacity     $ 3,500      
Outstanding balance     $ 1,969 $ 2,625    
Term of the debt     4 years      
Principal payments of Term Loan            
2017     $ 1,094      
2018     875      
Total     $ 1,969