XML 59 R44.htm IDEA: XBRL DOCUMENT v3.6.0.2
Revolving Credit Facilities (Details) - USD ($)
Nov. 03, 2016
Dec. 31, 2016
US    
Line of Credit Facility [Line Items]    
Line of credit facility, decrease to borrowing capacity under amended credit agreement $ 15,000,000.0  
Revolving credit facility maximum available credit $ 335,000,000.0  
Fixed charge coverage ratio 120.00%  
Minimum remaining borrowing capacity level before covered ratio is applicable, while Tranche A Loan is outstanding $ 36,000,000.0  
Line of credit facility, maximum remaining borrowing capacity 42,000,000.0  
Minimum remaining borrowing capacity level before covered ratio is applicable $ 32,500,000.0  
Minimum percentage of maximum borrowing capacity or alternative base, before covered ratio is applicable 12.50%  
Line of credit facility, excess availability threshold amount $ 50,000,000.0  
Wells Fargo Bank | Revolving credit facility | U.S.    
Line of Credit Facility [Line Items]    
Outstanding lines of credit   $ 176,200,000
Revolving credit facility excess availability   $ 63,500,000
Interest rate on revolving credit facility   4.60%
Tranche A Loan | Line of Credit    
Line of Credit Facility [Line Items]    
Line of credit facility, decrease to borrowing capacity under amended credit agreement 4,000,000  
Debt instrument face amount $ 16,000,000