Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies, Minimum Lease Payments (Details)

v3.6.0.2
Commitments and Contingencies, Minimum Lease Payments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]      
Long-term Purchase Commitment, Period 19 years    
Year ending December 31,      
2017 $ 35,134    
2018 27,368    
2019 16,992    
2020 9,925    
2021 7,463    
2022 and thereafter 31,652    
Total 128,534    
Operating Leases, Rent Expense $ 41,156 $ 40,811 $ 35,699