Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended							12 Months Ended					3 Months Ended						12 Months Ended
	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 24, 2013	Dec. 23, 2012	Sep. 23, 2012	Jun. 29, 2014	Jun. 30, 2013	Jun. 24, 2012	Jun. 24, 2012 Singapore [Member]	Jun. 29, 2014 Internal Revenue Service (IRS) [Member]	Jun. 29, 2014 State and Local Jurisdiction [Member]	Jun. 29, 2014 Foreign Tax Authority [Member]	Jun. 24, 2012 California deferred tax assets [Member]	Jun. 26, 2011 Impact In UK After Intercompany Transactions [Member]	Jun. 24, 2012 Deferred Tax Assets In U K Portion Reduced Due To Taxable Income Member [Member]	Jun. 26, 2011 Deferred Tax Assets In U K Portion Reduced Due To Taxable Income Member [Member]	Jun. 29, 2014 Deferred Tax Assets In U K Portion Reduced Due To Taxable Income Member [Member]	Mar. 25, 2012 Impact In US After Intercompany Transactions [Member]	Jun. 29, 2014 Impact In US After Intercompany Transactions [Member]	Jun. 29, 2014 Research Tax Credit Carryforward [Member] Internal Revenue Service (IRS) [Member]	Jun. 29, 2014 Massachusetts [Member] Research Tax Credit Carryforward [Member] State and Local Jurisdiction [Member]	Jun. 29, 2014 Massachusetts [Member] Investment Tax Credit Carryforward [Member] State and Local Jurisdiction [Member]	Jun. 29, 2014 California [Member] Research Tax Credit Carryforward [Member] State and Local Jurisdiction [Member]	Jun. 29, 2014 Beginning [Member] Internal Revenue Service (IRS) [Member]	Jun. 29, 2014 Beginning [Member] State and Local Jurisdiction [Member]	Jun. 29, 2014 Beginning [Member] Foreign Tax Authority [Member]	Jun. 29, 2014 Beginning [Member] Research Tax Credit Carryforward [Member] Internal Revenue Service (IRS) [Member]	Jun. 29, 2014 Beginning [Member] Massachusetts [Member] Research Tax Credit Carryforward [Member] State and Local Jurisdiction [Member]	Jun. 29, 2014 Beginning [Member] Massachusetts [Member] Investment Tax Credit Carryforward [Member] State and Local Jurisdiction [Member]	Jun. 29, 2014 Ending [Member] [Member] Internal Revenue Service (IRS) [Member]	Jun. 29, 2014 Ending [Member] [Member] State and Local Jurisdiction [Member]	Jun. 29, 2014 Ending [Member] [Member] Foreign Tax Authority [Member]	Jun. 29, 2014 Ending [Member] [Member] Research Tax Credit Carryforward [Member] Internal Revenue Service (IRS) [Member]	Jun. 29, 2014 Ending [Member] [Member] Massachusetts [Member] Research Tax Credit Carryforward [Member] State and Local Jurisdiction [Member]	Jun. 29, 2014 Ending [Member] [Member] Massachusetts [Member] Investment Tax Credit Carryforward [Member] State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Amount included in provision for income taxes related to multijurisdictional taxation for the correction of an immaterial prior period error									$ 2,900,000
Income (loss) from continuing operations before income taxes [Abstract]
Domestic									32,255,000	(105,575,000)	(88,430,000)
Foreign									38,731,000	28,745,000	16,623,000
Income (loss) before income taxes	20,410,000	18,691,000	16,290,000	15,595,000	(217,000)	(19,645,000)	(35,143,000)	(21,825,000)	70,986,000	(76,830,000)	(71,807,000)
Current income taxes [Abstract]
Domestic									5,118,000	1,735,000	5,971,000
Foreign									(203,000)	(1,129,000)	2,455,000
Total current income tax (benefit) provision									4,915,000	606,000	8,426,000
Deferred income taxes [Abstract]
Domestic									1,150,000	352,000	5,728,000
Foreign									6,188,000	11,032,000	(30,911,000)
Total deferred income tax (benefit) provision									7,338,000	11,384,000	(25,183,000)
Total (benefit) provision	7,461,000	(449,000)	(1,631,000)	6,872,000	5,861,000	1,600,000	(2,421,000)	6,950,000	12,253,000	11,990,000	(16,757,000)
Tax benefit from options exercised									200,000	0	1,700,000
Effective tax rate reconciliation [Abstract]
Statutory tax rate									35.00%	(35.00%)	(35.00%)
State taxes, net of federal benefit									0.40%	(0.10%)	14.60%
Change in valuation allowance									(25.50%)	58.20%	(38.90%)
Multijurisdictional taxation									4.60%	(8.40%)	(1.50%)
Actual and deemed foreign dividends									7.20%	2.70%	3.70%
Foreign tax credit									(5.20%)	(4.80%)	(7.00%)
Research and development credit									1.40%	(8.00%)	(2.60%)
Uncertain tax positions									(12.60%)	(6.60%)	3.70%
Tax rate changes									6.10%	9.70%	0.70%
Withholding tax									3.70%	4.30%	6.70%
Stock based compensation									0.90%	2.40%	2.50%
Goodwill impairment									0.00%	0.00%	30.10%
Other, net									1.30%	1.20%	(0.30%)
Effective tax rate (benefit)									17.30%	15.60%	(23.30%)
Deferred tax assets:
Accrued expenses	13,857,000				13,514,000				13,857,000	13,514,000
Accrued compensation	17,187,000				18,011,000				17,187,000	18,011,000
Property, plant and equipment	5,104,000				8,499,000				5,104,000	8,499,000
Losses carryforward	76,045,000				108,921,000				76,045,000	108,921,000
Research and experimental credits	50,385,000				51,015,000				50,385,000	51,015,000
Other tax credits	40,719,000				36,745,000				40,719,000	36,745,000
Other	740,000				636,000				740,000	636,000
Total deferred tax assets	204,037,000				237,341,000				204,037,000	237,341,000
Valuation allowance	(167,428,000)				(204,233,000)				(167,428,000)	(204,233,000)
Deferred tax liabilities:
Unrealized gain on securities	(7,122,000)				(2,992,000)				(7,122,000)	(2,992,000)
Prepaid expenses	(899,000)				(1,347,000)				(899,000)	(1,347,000)
Undistributed foreign earnings	(3,425,000)				0				(3,425,000)	0
Total deferred tax liabilities	(11,446,000)				(4,339,000)				(11,446,000)	(4,339,000)
Net deferred tax assets	25,163,000				28,769,000				25,163,000	28,769,000
Reduction of statutory tax rate in U.K. [Abstract]
Change in Valuation Allowance																10,300,000
Reduction in Associated Deferred Charge																		800,000
Deferred charge related to certain intercompany transactions																	14,600,000				16,500,000
Reduction in associated valuation allowance due to deferred charge																			800,000
Deferred Charge Balance																				5,000,000		10,200,000
Valuation Allowance Balance																				2,200,000	13,400,000	8,300,000
Reduction to Deferred Tax Asset and Valuation Allowance Amount																					3,100,000
Statutory tax rate in the U.K., prior to reduction (in hundredths)								24.00%
Impact of rate reduction on deferred tax assets								3,200,000
Statutory tax rate in the U.K., subsequent to reduction (in hundredths)				21.00%				23.00%
Statutory tax rate in the U.K., further reduction (in hundredths)				20.00%
Change in deferred tax assets [Abstract]
Reduction In Deferred Tax Assets				4,200,000
Benefit due to holiday												0
Reduction in Associated Deferred Charge																		800,000
Reconciliation of unrecognized tax benefits [Roll Forward]
Beginning balance				44,685,000				48,876,000	44,685,000	48,876,000
Increases for positions taken in current year									1,760,000	2,262,000
Increases for positions taken in a prior year									4,069,000	2,395,000
Decreases for positions taken in current year									(212,000)	0
Decreases for positions taken in a prior year									(1,532,000)	(3,953,000)
Decreases for settlements with taxing authorities									(552,000)	0
Decreases for lapses in the applicable statute of limitation									(6,479,000)	(4,895,000)
Unrecognized tax benefits	41,739,000				44,685,000				41,739,000	44,685,000	48,876,000
Liability for income tax associated with uncertain tax positions	3,200,000								3,200,000
Impact to Net Income of change in unrecognized tax positions in the current year									9,100,000
Accrued interest and penalties related to uncertain tax positions	1,200,000				3,900,000				1,200,000	3,900,000
Change in Accrued Interest and Penalties									2,700,000	500,000
Expected increase (decrease) in uncertain tax positions during the next twelve months	(800,000)								(800,000)
Operating Loss Carryforwards													127,700,000	118,200,000	33,300,000
Operating Loss Carryforwards, Expiration Date																											Dec. 31, 2029	Dec. 31, 2015	Dec. 31, 2019				Dec. 31, 2033	Dec. 31, 2033	Dec. 31, 2024
Tax Credit Carryforward, Amount															62,700,000								23,300,000	1,200,000	400,000	41,500,000
Tax Credit Carryforward, Expiration Date																														Dec. 31, 2026	Dec. 31, 2023	Dec. 31, 2023				Dec. 31, 2033	Dec. 31, 2029	Dec. 31, 2029
Foreign Earnings Repatriated									9,300,000
Undistributed Earnings of Foreign Subsidiaries	$ 118,100,000								$ 118,100,000