XML 67 R55.htm IDEA: XBRL DOCUMENT v3.7.0.1
Accounts Receivable Securitization (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Accounts Receivable Securitization    
Trade accounts receivable balance sold $ 28,700,000 $ 19,500,000
Average collection cycle for accounts receivable (in days) (less than) 60 days  
Fair value of deferred purchase price notes $ 19,400,000 $ 30,600,000
Period for which the entity will be able to comply with the financial covenants pertaining to the Receivable Purchase Agreement (in months) 12 months 12 months
Maximum    
Accounts Receivable Securitization    
Capacity of securitization program $ 75,000,000