Segment Information - Reconciliation of Segment AOI (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Oct. 03, 2021	Oct. 04, 2020	Apr. 05, 2020	Oct. 03, 2021	Oct. 04, 2020
Segment Reporting, Reconciling Item for Operating Income (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)	$ 24,777	$ 15,882		$ 70,867	$ (60,237)
Amortization of acquired intangible assets				4,269	4,030
Goodwill and Intangible Asset Impairment Charge	0	0	$ 121,300	0	121,258
Interest Expense	7,727	5,426		22,272	16,021
Other Expense	887	2,921		2,219	9,551
Income (Loss) from Continuing Operations before Income Tax Expense	16,163	7,535		46,376	(85,809)
Operating Segments | AMS
Segment Reporting, Reconciling Item for Operating Income (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)	21,684	14,857		54,432	52,144
Amortization of acquired intangible assets	0	0		0	0
Goodwill and Intangible Asset Impairment Charge				0	2,695
Impact of change in equity award forfeiture accounting				0	757
Restructuring, asset impairment, severance and other charges	(89)	2,733		174	9,486
SEC fine	0	2,689		0	2,689
AOI	21,595	20,279		54,606	67,771
Operating Segments | EAAA
Segment Reporting, Reconciling Item for Operating Income (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)	3,093	1,025		16,435	(112,381)
Amortization of acquired intangible assets	1,407	1,399		4,269	4,030
Goodwill and Intangible Asset Impairment Charge				0	118,563
Impact of change in equity award forfeiture accounting				0	650
Restructuring, asset impairment, severance and other charges	4,086	3,086		5,853	3,978
SEC fine	0	2,311		0	2,311
AOI	$ 8,586	$ 7,821		$ 26,557	$ 17,151