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Long-Term Debt (Details Textual) $ in Thousands, BRL in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 BRL	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)
Long Term Debt (Textual) [Abstract]
Lease Expiration Date	Jun. 01, 2034
Short-term Debt	$ 16,200		$ 16,200	$ 3,000
Unamortized debt issuance cost	$ 4,100		$ 4,100
Number of manufacturer-affiliated finance partners	3		3			3
Borrowings Of Long Term Debt Related To Real Estate Loans			$ 42,654	32,026	$ 112,179
Long-term Debt, Percentage Bearing Fixed Interest, Amount	$ 93,900		93,900	100,700
Gains (Losses) on Extinguishment of Debt			0	0	(46,403)
Amortization Cost of Mortgage Facility, Real Estate Related Debt and Acquisition Line			3,694	3,652	10,559
Impact of interest rate derivative instruments related to Mortgage Facility			2,300	1,800	1,500
Total interest expense related to capital leases, net of interest income			6,600	7,600	7,500
Interest costs capitalized on construction projects			1,700	700	700
5.00% Senior Note [Member]
Long Term Debt (Textual) [Abstract]
Note agreement with a third party financial institution	$ 550,000		$ 550,000	550,000			$ 200,000	$ 350,000
Debt interest rate	5.00%		5.00%			5.00%
Maturity date of notes			Jun. 01, 2022
Additional borrowings discount from face value	1.50%		1.50%			1.50%
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed			35.00%
Redemption price percentage of principal outstanding and accrued unpaid interest	105.00%		105.00%			105.00%
Redemption price percentage of principal redeemed	100.00%		100.00%			100.00%
Long-term Debt Underwriters Fees, Discount, and Debt Issuance Costs Original	$ 13,100		$ 13,100
Amortization period of underwriters fees, debt issuance costs, and discount			8 years
Unamortized Underwriters Fees, Discount, and Debt Issuance Costs	9,500		$ 9,500
Long-term Debt, Fair Value	548,400		548,400	545,900
5.25% Senior Note [Member]
Long Term Debt (Textual) [Abstract]
Note agreement with a third party financial institution	$ 300,000		$ 300,000	$ 300,000
Debt interest rate				5.25%
Maturity date of notes			Dec. 15, 2023
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed			35.00%
Redemption price percentage of principal outstanding and accrued unpaid interest	105.25%		105.25%			105.25%
Redemption price percentage of principal redeemed	100.00%		100.00%			100.00%
Long-term Debt Underwriters Fees and Debt Issuance Costs Original	$ 5,000		$ 5,000
Amortization period of underwriters fees and debt issuance costs			8 years
Unamortized Underwriters Fees and Debt Issuance Costs	4,400		$ 4,400
Long-term Debt, Fair Value	$ 297,000		$ 297,000	$ 297,800
Capital Lease Obligations [Member]
Long Term Debt (Textual) [Abstract]
Debt, Weighted Average Interest Rate	9.90%		9.90%			9.90%
3.00% Convertible Notes due 2020
Long Term Debt (Textual) [Abstract]
Debt interest rate	3.00%		3.00%			3.00%
U.K. Working Capital Loan [Member]
Long Term Debt (Textual) [Abstract]
Short-term Debt	$ 7,300		$ 7,300
Additional Borrowings			7,800
Proceeds from Short-term Debt			3,000
Convertible and Senior Notes [Member]
Long Term Debt (Textual) [Abstract]
Total interest expense excluding amortization cost			43,300	28,500	17,000
Amortization cost of the 3.00% notes, 2.25% Notes, 5.00% Notes, and 5.25% Notes			$ 2,100	1,500	8,000
Brazilian third party financial institution [Member]
Long Term Debt (Textual) [Abstract]
Maturity date of notes			Feb. 01, 2017
Total borrowings | BRL						BRL 6.8
Borrowings Of Long Term Debt Related To Real Estate Loans			$ 0
Brazil Note [Member]
Long Term Debt (Textual) [Abstract]
Maturity date of notes			Apr. 01, 2025
Unamortized debt issuance cost	300		$ 300
Total borrowings	3,800		3,800
Long-term Debt, Current Maturities	400		400
Repayments of Long-term Debt			500
Borrowings Of Long Term Debt Related To Real Estate Loans			0
Real Estate Related Debt [Member]
Long Term Debt (Textual) [Abstract]
Note agreement with a third party financial institution	363,000		363,000
Debt Issuance Cost			2,800
Unamortized debt issuance cost	700		700
Total borrowings	321,900		321,900	241,800
Long-term Debt, Current Maturities	39,800		$ 39,800	13,700
Interest on real estate notes, minimum			3.00%
Interest on real estate notes, maximum			4.69%
Number of loans as per loan agreements			55
Repayments of Long-term Debt			$ 17,200
Proceeds from Issuance of Long-term Debt			$ 42,700
Real Estate Related Debt [Member] | Minimum [Member]
Long Term Debt (Textual) [Abstract]
Variable Interest Rate			1.50%
Real Estate Related Debt [Member] | Maximum [Member]
Long Term Debt (Textual) [Abstract]
Maturity date of notes			Dec. 10, 2024
Variable Interest Rate			2.50%
Fixed interest rate debt [Member]
Long Term Debt (Textual) [Abstract]
Long-term Debt, Fair Value	94,500		$ 94,500	102,400
Real Estate Credit Facility, Real Estate Related Debt and Acquisition Line [Member]
Long Term Debt (Textual) [Abstract]
Total interest expense excluding amortization cost			$ 13,700	17,600	$ 15,300
U.K. Notes [Member]
Long Term Debt (Textual) [Abstract]
Maturity date of notes			Sep. 01, 2034
Total borrowings	50,400		$ 50,400	57,100
Long-term Debt, Current Maturities	4,300		4,300	$ 4,500
Long-term debt assumed in conjunction with acquisition	8,300		$ 8,300
Number of loans as per loan agreements			13
Repayments of Long-term Debt			$ 4,600
Borrowings Of Long Term Debt Related To Real Estate Loans			0
Revolving Credit Facility [Member]
Long Term Debt (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,800,000	$ 1,700,000	1,800,000
Line of Credit Facility, Expiration Date	Jun. 17, 2021	Jun. 20, 2018
Revolving Credit Facility, Acquisition Line [Member]
Long Term Debt (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	$ 360,000		360,000
Line of credit facility minimum borrowing capacity	$ 50,000		$ 50,000
Variable Interest Rate			1.50%

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The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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No definition available.

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Indicates the number of mortgages under each classification.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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