Derivative hedging agreements covering entity diesel fuel requirements for current fiscal year.

No definition available.

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- Definition

Derivative hedging agreements covering entity diesel fuel requirements for second fiscal year.

+ References

No definition available.

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- Definition

Derivative hedging agreements covering entity diesel fuel requirements next fiscal year.

+ References

No definition available.

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- Definition

Derivative hedging agreements covering entity exposure.

+ References

No definition available.

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- Definition

Derivative hedging agreements covering entity exposure next fiscal year.

+ References

No definition available.

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-Section 50
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Nominal or face amount used to calculate payments on the derivative asset.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Section S99
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-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Derivative Instruments and Risk Management - Additional Information (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 09, 2014	Dec. 31, 2018	Dec. 31, 2017
2.45% Senior notes due December 15, 2019
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Interest rate of debt	2.45%
Maturity date of debt	Dec. 15, 2019
Foreign Exchange Contract
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Face value of unexpired foreign currency contracts		$ 146.6
Interest Rate Swap Lock Agreement \| LIBOR-Based Rate
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Interest rate, spread		0.756%
Interest Rate Swap Lock Agreement \| 2.45% Senior notes due December 15, 2019
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Senior notes	$ 300.0
Interest rate of debt		2.45%
Maturity date of debt		Dec. 15, 2019
Interest Rate Swap Lock Agreement \| 2.45% Senior notes due December 15, 2019 \| LIBOR-Based Rate
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Interest rate, spread		0.756%
Designated as Hedging Instrument
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative hedging agreements covering diesel fuel requirements		64.00%
Derivative hedging agreements covering diesel fuel requirements, year 2019		79.00%
Derivative hedging agreements covering diesel fuel requirements, year 2020		50.00%
Derivative hedging agreements covering exposure		60.00%
Derivative hedging agreements covering exposure, year 2019		60.00%
Designated as Hedging Instrument \| Interest Rate Swap Lock
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount		$ 250.0	$ 0.0
Designated as Hedging Instrument \| Foreign Exchange Contract
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount		146.6	91.6
Designated as Hedging Instrument \| Interest Rate Swap Lock Agreement
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount		$ 300.0	$ 300.0