Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14557-108349

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Contingencies (Details) (USD $) In Millions, unless otherwise specified		3 Months Ended	9 Months Ended
	Dec. 31, 2013 SST acquisition [Member]	Sep. 30, 2012 SST acquisition [Member] Unusual or Infrequent Item [Member]	Dec. 31, 2012 SST acquisition [Member] Unusual or Infrequent Item [Member]	Dec. 31, 2013 Indemnification agreement [Member]	Apr. 08, 2010 Pending Litigation [Member] SST acquisition [Member]
Loss contingencies [Line Items]
Loss contingencies, estimate of possible loss				$ 121.0	$ 13.0
Legal settlement costs		11.5	11.5
Contingent liabilities outstanding	$ 5.7