Balance Sheet Detail - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Apr. 02, 2017
Inventories, net
Raw materials	$ 3,142		$ 2,017
Work-in-process	44,014		35,192
Finished goods	24,215		15,079
Total inventories, net	71,371		52,288
Accounts receivable, net
Accounts receivable, gross	110,331		94,396
Allowances	(6,898)		(5,084)
Total accounts receivable, net	103,433		89,312
Property, plant and equipment, net
Total property, plant and equipment, gross	335,236		329,240
Less: accumulated depreciation	(250,540)		(248,279)
Total property, plant and equipment, net	84,696		80,961
Other accrued liabilities
Accrued restructuring costs	5,358		4,841
Other	15,485		15,364
Total other accrued liabilities	20,843		20,205
Other long-term obligations
Deferred compensation related liabilities	16,166		15,024
Other	6,957		3,870
Total other long-term liabilities	23,123		18,894
Depreciation expense	6,116	$ 5,156
Land
Property, plant and equipment, net
Total property, plant and equipment, gross	11,535		11,535
Machinery and equipment
Property, plant and equipment, net
Total property, plant and equipment, gross	274,217		268,683
Building and leasehold improvements
Property, plant and equipment, net
Total property, plant and equipment, gross	$ 49,484		$ 49,022