Balance Sheet Detail (Additional Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Apr. 03, 2016
Inventories, net
Raw materials	$ 3,268		$ 3,251
Work-in-process	24,798		29,408
Finished goods	17,041		21,584
Total inventories, net	45,107		54,243
Property, plant and equipment, net
Total property, plant and equipment, gross	314,043		311,178
Less: accumulated depreciation	(239,198)		(237,301)
Total property, plant and equipment, net	74,845		73,877
Other accrued liabilities
Accrued restructuring costs	12,912		2,641
Other	10,254		12,333
Total other accrued liabilities	23,166		14,974
Other long-term obligations
Deferred compensation related liabilities	14,791		13,052
Other	7,017		8,212
Total other long-term liabilities	21,808		21,264
Depreciation expense	5,156	$ 4,464
Land
Property, plant and equipment, net
Total property, plant and equipment, gross	11,539		11,535
Machinery and equipment
Property, plant and equipment, net
Total property, plant and equipment, gross	252,869		250,628
Building and leasehold improvements
Property, plant and equipment, net
Total property, plant and equipment, gross	$ 49,635		$ 49,015