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Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Nov. 03, 2016	Aug. 31, 2013
Debt Instrument [Line Items]
Capital Leases	$ 1,754	$ 1,018
Debt and Capital Lease Obligations	1,985,297	1,892,776
Less - current portion	50,693	129,809
Long-term portion	1,934,604	1,762,967
Revolving Credit Facility
Debt Instrument [Line Items]
Unamortized discount and debt issuance cost	3,150	3,850
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	966,235	796,150
Other Borrowings
Debt Instrument [Line Items]
Long-term debt	9,875	1,153
Senior Notes Due 2026
Debt Instrument [Line Items]
Long-term debt	$ 747,580	$ 747,474
Stated interest rate (as a percent)	3.45%	3.45%
Unamortized discount and debt issuance cost	$ 2,420	$ 2,526
Senior Notes Due 2026 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	747,580	747,474
Stated interest rate (as a percent)			3.45%
4.375% Senior Notes, due 2023
Debt Instrument [Line Items]
Long-term debt	$ 248,438	$ 248,310
Stated interest rate (as a percent)	4.375%	4.375%
Unamortized discount and debt issuance cost	$ 1,562	$ 1,690
4.375% Senior Notes, due 2023 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	248,438	248,310
Stated interest rate (as a percent)				4.375%
Schuldschein Loan
Debt Instrument [Line Items]
Long-term debt	$ 11,415	$ 98,671