Long-Term Debt - Narrative (Details)	3 Months Ended
Mar. 31, 2019 USD ($) loan	Dec. 31, 2018 USD ($)
U.K. Working Capital Loans
Debt Instrument [Line Items]
Borrowings outstanding	$ 18,600,000	$ 18,500,000
Current maturities of long-term debt	2,000,000	2,000,000
Additional borrowings	0
Principal payments	$ 300,000
U.S. Notes
Debt Instrument [Line Items]
Number of loans as per loan agreements \| loan	57
Aggregate principal amount	$ 402,800,000
Borrowings outstanding	326,900,000	343,800,000
Current maturities of long-term debt	60,700,000	67,900,000
Additional borrowings	0
Repayment of mortgage	16,900,000
Principal payments	0
Mortgage Loans
Debt Instrument [Line Items]
Fixed interest rate borrowings	74,300,000	79,500,000
Fair value of fixed interest rate borrowings	$ 73,800,000	76,200,000
U.K. Notes
Debt Instrument [Line Items]
Number of loans as per loan agreements \| loan	18
Borrowings outstanding	$ 73,800,000	73,800,000
Current maturities of long-term debt	7,800,000	7,600,000
Additional borrowings	0
Principal payments	2,000,000
Brazil Note
Debt Instrument [Line Items]
Borrowings outstanding	2,400,000	2,500,000
Current maturities of long-term debt	400,000	300,000
Additional borrowings	0
Principal payments	100,000
Brazilian Third Party Loan
Debt Instrument [Line Items]
Borrowings outstanding	5,600,000	5,700,000
Additional borrowings	0
5.00% Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 550,000,000	550,000,000
Interest rate	5.00%
Fair value of long-term debt	$ 556,000,000	521,600,000
5.25% Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 300,000,000	300,000,000
Interest rate	5.25%
Fair value of long-term debt	$ 303,000,000	286,500,000
Revolving Credit Facility \| Brazilian Short-Term Financing Arrangement
Debt Instrument [Line Items]
Short-term loan	200,000	700,000
Principal payments under short-term debt agreement	500,000
Revolving Credit Facility \| U.K. Working Capital Loans
Debt Instrument [Line Items]
Short-term loan	13,000,000	$ 7,600,000
Principal payments under short-term debt agreement	7,600,000
Borrowings made under short-term debt agreement	$ 13,000,000

Long-term Debt, Percentage Bearing Fixed Interest, Fair Value

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- Definition

Repayments Of Mortgage Loan Debt

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No definition available.

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- Definition

Number of mortgage loans within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Footnote 3
-Subsection 29

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Footnote 3))
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Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

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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.

+ References

No definition available.

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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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The cash outflow for a borrowing having initial term of repayment within one year or 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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