Restructuring - Additional Information (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 11,854,000	$ 90,000	$ 4,376,000	$ 1,029,000	$ 2,483,000	$ 3,071,000	$ 1,576,000	$ 66,000	$ 17,349,000	$ 7,196,000	$ 9,267,000
Restructuring charges									17,349,000	7,196,000	9,267,000
December 2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring cost incurred to date	4,800,000								4,800,000
June 2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring cost incurred to date	4,200,000								4,200,000
June 2017 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring cost incurred to date	16,400,000								16,400,000
Restructuring charges									8,400,000	8,000,000
September 2015 Reduction
Restructuring Cost and Reserve [Line Items]
Restructuring cost incurred to date	7,200,000								7,200,000
Restructuring charges									0	(700,000)	2,000,000
March 2015 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring cost incurred to date	20,500,000								20,500,000
Restructuring charges									0	(100,000)	7,300,000
Minimum | June 2017 Plan
Restructuring Cost and Reserve [Line Items]
Total expected restructuring cost	21,500,000								21,500,000
Maximum | June 2017 Plan
Restructuring Cost and Reserve [Line Items]
Total expected restructuring cost	$ 23,000,000								23,000,000
Hyderabad | Disposed of by Sale
Restructuring Cost and Reserve [Line Items]
Ownership percentage						100.00%
Lease Termination
Restructuring Cost and Reserve [Line Items]
Restructuring charges									$ 7,379,000	$ 811,000	$ 2,993,000
Lease Termination | June 2017 Plan
Restructuring Cost and Reserve [Line Items]
Percentage of facility vacated	50.00%
Restructuring charges	$ 6,900,000