Subsequent Events (Details) (1% senior convertible notes, USD $) In Millions, unless otherwise specified	3 Months Ended			0 Months Ended
Sep. 29, 2012	Oct. 01, 2011	Jun. 05, 2006	Oct. 01, 2012 Subsequent event
Subsequent Events
Principal amount of debt repurchased	$ 50.0			$ 50.0
Interest rate on Senior convertible notes (as a percent)	1.00%	1.00%	1.00%	1.00%
Cash paid for repurchase of debt	$ 49.8			$ 49.9

Interest rate stated in the contractual debt agreement.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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