Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Name:	us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2014 Unrecognized Tax Benefits [Member]	Jun. 30, 2014 Unrecognized Tax Benefits [Member]	Mar. 31, 2014 Interest and Penalties [Member]	Jun. 30, 2014 Interest and Penalties [Member]
Income Tax Contingency [Line Items]
Reductions for tax positions of prior periods	$ 4.0			$ 3.6	$ 3.6	$ 0.4	$ 0.4
Income tax examination, description	The Company and its U.S. subsidiaries remain open to examination by the IRS for years 2010 onwards. The Company's subsidiaries in foreign tax jurisdictions are open to examination including France (2012 onwards), Germany (2010 onwards), Switzerland (2012 onwards) and the United Kingdom (2012 onwards)
Unremitted earnings		$ 605	$ 717