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Debt Instrument, Basis Spread on Variable Rate, Redemption Price Discounted Cash Flow Discount Rate

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Debt Instrument, Issue Price, Percentage of par

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

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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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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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.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Debt - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Common stock, voting rights, pledged	65.00%
Interest paid	$ 68.6	$ 30.6	$ 27.9
Senior Notes
Debt Instrument [Line Items]
Rate of interest discounted	0.30%
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 600.0
Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Commitment fee charged on unused portion of facility	0.125%
Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Commitment fee charged on unused portion of facility	0.25%
Term Loan
Debt Instrument [Line Items]
Senior notes, par value	$ 250.0
2021 Notes \| Senior Notes
Debt Instrument [Line Items]
Senior notes, par value	$ 275.0
Interest rate of debt	3.875%
Debt issued, percent of par	99.50%
Effective yield percentage	3.951%
2024 Notes \| Senior Notes
Debt Instrument [Line Items]
Senior notes, par value	$ 275.0
Interest rate of debt	4.375%
Debt issued, percent of par	99.60%
Effective yield percentage	4.422%
2021 and 2024 Notes \| Senior Notes
Debt Instrument [Line Items]
Senior notes redemption price, percentage	100.00%
Term A-2 Loan
Debt Instrument [Line Items]
Senior notes, par value	$ 195.8
Debt convent, springing maturity, period	91 days
Term B Loan
Debt Instrument [Line Items]
Senior notes, par value	$ 500.0
Debt convent, springing maturity, period	91 days
Letter of Credit
Debt Instrument [Line Items]
Borrowings outstanding	$ 210.1
Letters of credit outstanding, amount	15.2
European Lease Agreement \| Replaced Line of Credit
Debt Instrument [Line Items]
Letters of credit outstanding, amount	7.7	$ 1.3
Long-term debt, scheduled future principal payments 2019	27.5
Long-term debt, scheduled future principal payments 2020	30.3
Long-term debt, scheduled future principal payments 2021	316.6
Long-term debt, scheduled future principal payments 2022	558.4
Long-term debt, scheduled future principal payments 2023	5.0
Long-term debt, scheduled future principal payments, thereafter	$ 748.8
Base Rate \| Term B Loan
Debt Instrument [Line Items]
Basis spread on LIBOR, percent	3.50%
Eurodollar \| Term B Loan
Debt Instrument [Line Items]
Basis spread on LIBOR, percent	4.50%
LIBOR \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on LIBOR, percent	2.00%