Debts and Letters of Credit (Details) (USD $)			0 Months Ended	9 Months Ended	6 Months Ended		9 Months Ended			9 Months Ended			0 Months Ended	3 Months Ended		9 Months Ended				9 Months Ended
	Mar. 30, 2013 letter	Jun. 30, 2012	Jan. 20, 2012 Revolving Credit Facility	Mar. 30, 2013 Revolving Credit Facility item	Dec. 29, 2012 Revolving Credit Facility Alternate base rate	Dec. 29, 2012 Revolving Credit Facility Adjusted LIBOR rate	Mar. 30, 2013 Maximum Revolving Credit Facility	Mar. 30, 2013 Maximum Revolving Credit Facility Alternate base rate	Mar. 30, 2013 Maximum Revolving Credit Facility Adjusted LIBOR rate	Mar. 30, 2013 Minimum Revolving Credit Facility	Mar. 30, 2013 Minimum Revolving Credit Facility Alternate base rate	Mar. 30, 2013 Minimum Revolving Credit Facility Adjusted LIBOR rate	Jun. 30, 2006 1% senior convertible notes	Mar. 30, 2013 1% senior convertible notes	Mar. 31, 2012 1% senior convertible notes	Mar. 30, 2013 1% senior convertible notes	Mar. 31, 2012 1% senior convertible notes	Jun. 30, 2012 1% senior convertible notes	Jun. 05, 2006 1% senior convertible notes	Mar. 30, 2013 1% senior convertible notes Maximum
Debt details
Convertible Debt														$ 159,600,000		$ 159,600,000		$ 292,800,000
Short-term debt	159,600,000	292,800,000
Interest rate on Senior convertible notes (as a percent)														1.00%		1.00%			1.00%
Aggregate principal amount of convertible debt																			425,000,000
Proceeds from issuance of convertible notes after issuance costs																			415,900,000
Conversion price of convertible debt (in dollars per share)														$ 30.30		$ 30.30
Number of lenders				0
Percentage of principal amount that the holder of the note may require the entity to repurchase the debt instrument on May 15, 2013, 2016, and 2021														100.00%		100.00%
Percentage of principal amount that the holder of the note may require the entity to repurchase due to certain fundamental changes undergone by the entity																100.00%
Percentage of principal amount at which the entity may redeem some or all of the notes on or after May 20, 2013																100.00%
Discount rate used to calculate the carrying value of the liability component of the convertible debt (as a percent)																			8.10%
Variable rate basis on which discount rate is based					Base rate	LIBOR							7-year swap
Carrying value of the liability component of convertible debt																			266,500,000
Carrying value of the equity component of convertible debt																			158,500,000
Remaining term of convertible notes																				1 year
Deferred finance costs				1,900,000															9,100,000
Liability component, debt issuance cost																			5,700,000
Equity component, debt issuance cost																			3,400,000
Principal amount of debt repurchased														50,000,000		150,000,000
Cash paid for repurchase of debt														50,000,000		149,700,000
Losses on repurchase of Convertible Notes														700,000		4,100,000
Carrying amounts of the liability and equity components:
Carrying amount of equity component, net of equity issuance cost														156,300,000		156,300,000		158,300,000
Principal amount of 1% senior convertible note														161,000,000		161,000,000		311,000,000
Unamortized discount of liability component														(1,400,000)		(1,400,000)		(18,200,000)
Fair market value of convertible debt	161,000,000	307,300,000
Fair value of the bond parity derivatives	0	0												0		0		0
Effective interest rate and interest expense for the contractual interest and the accretion of debt discount:
Effective interest rate (as a percent)														8.10%	8.10%	8.10%	8.10%
Interest expense-contractual interest														400,000	800,000	1,600,000	2,400,000
Accretion of debt discount														2,800,000	5,100,000	10,600,000	15,000,000
Credit facility term			5 years
Maximum borrowing capacity under the credit agreement			250,000,000
Potential additional borrowings allocated as either an increase to the revolving loan commitments or as an add-on term loan				100,000,000
Percentage points added to the reference rate								2.00%	3.00%		0.75%	1.75%
Commitment fee on the unused portion of the credit facility (as a percent)							0.50%			0.25%
Minimum cash and permitted investments agreed to be maintained under the terms of revolving credit facility				200,000,000
Period of amortization of debt issuance costs capitalized				5 years
Outstanding balance	0			0
Unamortized portion of debt issuance cost				1,400,000										100,000		100,000
Drawdown under the facility				0
Outstanding Letters of Credit
Number of standby letters of credit	16
Letters of credit outstanding	$ 33,900,000