Debt and Financing Arrangements (2010 Notes) - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions		3 Months Ended		6 Months Ended
	Sep. 27, 2010	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Debt Instrument [Line Items]
Interest expense annualized basis		$ 2,848	$ 3,577	$ 5,825	$ 7,010
Non operating charge included in other income (expense), net		(1,126)	3,936	1,733	5,911
2010 Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Cash portion of retirement		$ 17,200
Shares issued in exchange for partial retirement of debt		5.1
Partial extinguishment of debt		$ 49,300
Common stock valued in exchange for partial retirement of debt		48,000
Interest expense annualized basis		$ 1,683	$ 2,534	3,609	$ 5,041
Non operating charge included in other income (expense), net				$ 800
Amortized discount at annual effective rate	7.50%
Discount, period of issuance	5 years
Remaining period for amortization of discount		3 months