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Recent Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Net cash used in investing activities	$ 53.0	$ 47.1	$ 61.2
Effect of exchange rate changes on cash, cash equivalents and restricted cash	$ (5.3)	(8.5)	(10.0)
ASU 2016-18
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Net cash used in investing activities		47.1	61.2
Effect of exchange rate changes on cash, cash equivalents and restricted cash		(8.5)	(10.0)
ASU 2016-18 | Scenario Previously Reported
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Net cash used in investing activities		46.8	54.0
Effect of exchange rate changes on cash, cash equivalents and restricted cash		$ (8.4)	$ (9.4)

X

- Definition

Effect of exchange rate on cash and cash equivalents and restricted cash and cash equivalents.

+ References

No definition available.

+ Details

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- Definition

Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3574-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3521-108585

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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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