Royalty and Other Income, Net (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended												12 Months Ended			1 Months Ended
	Jun. 29, 2012	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012 Land and Building
Property, Plant and Equipment [Line Items]
Royalty income, net														$ 5,956	$ 5,428	$ 6,167
Net interest income														1,563	2,296	1,486
Amortization of discount on promissory notes receivable														763	892	155
Foreign currency transaction gain (loss)														(451)	(558)	530
Purchased intangible assets amortization														(1,620)	(1,696)	(2,365)
Net gain on sale of non-operating real estate	2,700													0	2,744	0
Net income (loss) from rental activities														0	(338)	311
Write-off of intangible asset in connection with the sale of intellectual property														0	0	(4,303)
Other														145	102	(241)
Total royalty and other income, net		1,504	1,456	1,997	1,399	1,763	1,863	3,613	1,631	(3,259)	882	1,837	2,280	6,356	8,870	1,740
Net proceeds from sale of real estate														0	6,800	0	6,800
Royalty Income
Fiscal year 2014		5,000												5,000
Fiscal year 2015		5,000												5,000
Total		$ 10,000												$ 10,000