The total number of new claims filed pertaining to a loss contingency during the period.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

Name:	us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Commitments and Contingencies (Details) (USD $) In Millions, except Share data, unless otherwise specified		1 Months Ended		3 Months Ended
	Apr. 30, 2012	Mar. 31, 2009 Israeli Optionholder Class Actions [Member] Class_Action_Litigations	Apr. 30, 2012 Guarantee Obligations [Member]	Apr. 30, 2012 CTI [Member]
Commitments And Contingencies [Line Items]
Bank guarantees to provide customer assurance			$ 68.7
Aggregate amount to be paid under settlement agreement	160.2
Issuance of shares under settlement agreement value				$ 82.5
Issuance of shares under settlement agreement (in shares)				12,462,236
Number of claims filed		4