Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Aug. 31, 2013
Debt Instrument [Line Items]
Capital Leases	$ 1,258	$ 1,018
Total	1,869,997	1,892,776
Less - current portion	87,373	129,809
Long-term portion	1,782,624	1,762,967
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	825,773	796,150
Unamortized discount and debt issuance cost	3,500	3,850
4.375% Senior Notes, due 2023
Debt Instrument [Line Items]
Long-term debt			$ 250,000
Stated interest percentage			4.375%
Other Borrowings
Debt Instrument [Line Items]
Long-term debt	5,359	1,153
Senior Notes Due 2026
Debt Instrument [Line Items]
Long-term debt	$ 747,515	$ 747,474
Stated interest percentage	3.45%	3.45%
Unamortized discount and debt issuance cost	$ 2,485	$ 2,526
Schuldschein Loan
Debt Instrument [Line Items]
Long-term debt	$ 41,718	$ 98,671

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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