Net Income (Loss) Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 01, 2012	Jan. 02, 2011	Jan. 01, 2012	Jan. 02, 2011
Net Income (Loss) Per Share (Details) [Abstract]
Net income from continuing operations	$ (903)	$ 14,897	$ 19,966	$ 54,121
Net income (loss) from discontinued operations	(5,290)	(5,103)	25,742	(15,340)
Net income	$ (6,193)	$ 9,794	$ 45,708	$ 38,781
Denominators [Abstract]
Weighted average shares outstanding - basic (in shares)	141,839,000	151,421,000	144,792,000	154,487,000
Dilutive effect of employee stock options and restricted stock units (in shares)	0	1,554,000	1,914,000	1,038,000
Weighted average common shares outstanding, assuming dilution (in shares)	141,839,000	152,975,000	146,706,000	155,525,000
Basic net income (loss) per share [Abstract]
Net income (loss) from continuing operations (in dollars per share)	$ (0.01)	$ 0.10	$ 0.14	$ 0.35
Net income (loss) from discontinued operations (in dollars per share)	$ (0.03)	$ (0.04)	$ 0.18	$ (0.10)
Basic net income (loss) per share (in dollars per share)	$ (0.04)	$ 0.06	$ 0.32	$ 0.25
Diluted net income (loss) per share [Abstract]
Net income from continuing operations (in dollars per share)	$ (0.01)	$ 0.10	$ 0.14	$ 0.35
Net income (loss) from discontinued operations (in dollars per share)	$ (0.03)	$ (0.04)	$ 0.17	$ (0.10)
Diluted net income (loss) per share (in dollars per share)	$ (0.04)	$ 0.06	$ 0.31	$ 0.25
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share excluded from calculation because they were anti-dilutive (in shares)	18.9	11.1	12.9	16.9
Unvested Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share excluded from calculation because they were anti-dilutive (in shares)	0.8	0.7	0.1	0.1