Quarterly report pursuant to Section 13 or 15(d)

Lease Obligations (Narrative) (Details)

v3.5.0.2
Lease Obligations (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Operating Leased Assets [Line Items]      
Lease expiration year, minimum 2016    
Lease expiration year, maximum 2023    
Percentage of increase in annual base rent, minimum 3.00%    
Percentage of increase in annual base rent, maximum 3.50%    
Lease exit costs $ 244 $ 223  
Rent expense, net sublease income 600 900  
Adjustment for accretion and changes in lease assumptions 200 $ 200  
Contract Termination      
Operating Leased Assets [Line Items]      
Lease exit costs $ 600   $ 900