The amount of increase in the benefit obligation attributed to business combinations.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)(8)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Benefit Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	1 Months Ended
	Feb. 28, 2013	Jul. 01, 2011 German Pension Plan [Member]	Feb. 28, 2013 German Pension Plan [Member]	Nov. 30, 2012 German Pension Plan [Member]	Feb. 28, 2013 U.S. Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of returns amortized in net periodic pension calculations	10.00%
Liability recognized under employee benefit plan		$ 21.8
Investment in insurance contract			18.3	18.6
Expected contributions to U.S. pension plans					$ 3.0