Face (par) amount of debt instrument at time of issuance.

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Period Type:	instant

- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

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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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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

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Indebtedness - Additional Information (Details)		3 Months Ended			6 Months Ended
Indebtedness - Additional Information (Details)	Dec. 05, 2014 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Jul. 01, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jul. 01, 2017 USD ($)	Mar. 08, 2018 USD ($)	Mar. 08, 2018 EUR (€)	Dec. 31, 2017 USD ($)	Mar. 30, 2015 USD ($)	Dec. 05, 2014 EUR (€)
Debt Instrument [Line Items]
Debt instrument, issuance date	Dec. 05, 2014
Loss on extinguishment of debt		$ 0	$ 500,000	$ 135,200,000	$ 500,000	$ 135,200,000
Outstanding balance		0			0				$ 6,900,000
2014 Term loan due December 5, 2019
Debt Instrument [Line Items]
Face amount of debt	$ 614,300,000							€ 350,000,000			€ 500,000,000
2018 Euro-Denominated Term Loan due March 8, 2020
Debt Instrument [Line Items]
Face amount of debt							$ 431,000,000	€ 350,000,000
Repayments of debt					26,300,000
2014 Revolver
Debt Instrument [Line Items]
Face amount of debt	$ 600,000,000
Maximum borrowing capacity										$ 1,000,000,000
Borrowings outstanding									$ 0
2018 Revolver
Debt Instrument [Line Items]
Face amount of debt							$ 1,000,000,000
Borrowings outstanding		$ 0			$ 0