Investments (Tables)

9 Months Ended

Mar. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Summary of Marketable Investments by Type

The following tables summarize marketable investments (in thousands):

	March 30, 2014
	Amortized     Cost		Gross Unrealized     Gains		Gross Unrealized     Losses			Estimated Fair  Value
Municipal bonds		$306,484		$1,598		($289	)		$307,793
Corporate bonds	227,500		1,742		(574		)	228,668
U.S. agency securities	27,095		189		—			27,284
Non-U.S. certificates of deposit	383,758		—		—			383,758
Non-U.S. government securities	7,045		25		—			7,070
Total		$951,882		$3,554		($863	)		$954,573
	June 30, 2013
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Municipal bonds		$250,206		$817		($1,314	)		$249,709
Corporate bonds	192,147		1,678		(1,765		)	192,060
U.S. agency securities	39,288		186		—			39,474
Non-U.S. certificates of deposit	345,000		—		—			345,000
Non-U.S. government securities	7,608		14		(19		)	7,603
Total		$834,249		$2,695		($3,098	)		$833,846

Summary of Gross Unrealized Losses and Estimated Fair Value of Investment Securities, Aggregated by Investment Type and Length of Time

The following tables present the gross unrealized losses and estimated fair value of the Company's investment securities, aggregated by investment type and the length of time that individual investment securities have been in a continuous unrealized loss position (in thousands, except numbers of securities):

	March 30, 2014
	Less than 12 Months					Greater than 12 Months					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Municipal bonds		$61,656		($289	)		$—		$—			$61,656		($289	)
Corporate bonds	82,888		(536		)	1,979		(38		)	84,867		(574		)
Non-U.S. government securities	—		—			—		—			—		—
Total		$144,544		($825	)		$1,979		($38	)		$146,523		($863	)
Number of securities with an unrealized loss			71					1					72
	June 30, 2013
	Less than 12 Months					Greater than 12 Months					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Municipal bonds		$126,926		($1,314	)		$—		$—			$126,926		($1,314	)
Corporate bonds	102,010		(1,765		)	—		—			102,010		(1,765		)
Non-U.S. government securities	5,534		(19		)	—		—			5,534		(19		)
Total		$234,470		($3,098	)		$—		$—			$234,470		($3,098	)
Number of securities with an unrealized loss			123					—					123

Contractual Maturities of Marketable Investments by Type

The contractual maturities of marketable investments as of March 30, 2014 were as follows (in thousands):

	Within One     Year		After One, Within Five     Years		After Five, Within Ten     Years		After Ten     Years		Total
Municipal bonds		$70,398		$213,400		$23,995		$—		$307,793
Corporate bonds	33,506		176,288		18,874		—		228,668
U.S. agency securities	8,083		19,201		—		—		27,284
Non-U.S. certificates of deposit	383,758		—		—		—		383,758
Non-U.S. government securities	4,054		3,016		—		—		7,070
Total		$499,799		$411,905		$42,869		$—		$954,573