Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Schedule of Rent Expense) (Details)

v3.6.0.2
Commitments and Contingencies (Schedule of Rent Expense) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Line Items]      
Rent expense $ 77,083 $ 69,570 $ 64,335
Selling, General and Administrative Expense [Member]      
Property, Plant and Equipment [Line Items]      
Rent expense 75,457 67,881 62,704
Cost of Sales [Member]      
Property, Plant and Equipment [Line Items]      
Rent expense $ 1,626 $ 1,689 $ 1,631