Segment Information - Reconciliation of Segment AOI (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2021	Apr. 05, 2020
Segment Reporting, Reconciling Item for Operating Income (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)	$ 16,866	$ (93,512)
Amortization of acquired intangible assets	1,421	1,315
Goodwill and Intangible Asset Impairment	0	121,258
Interest Expense	7,256	5,630
Other Expense	715	1,491
Income (Loss) from Continuing Operations before Income Tax Expense	8,895	(100,633)
Operating Segments
Segment Reporting, Reconciling Item for Operating Income (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)	16,866	(93,512)
Interest Expense	7,256	5,630
Other Expense	715	1,491
Income (Loss) from Continuing Operations before Income Tax Expense	8,895	(100,633)
Operating Segments | AMS
Segment Reporting, Reconciling Item for Operating Income (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)	11,647	20,100
Amortization of acquired intangible assets	0	0
Goodwill and Intangible Asset Impairment		2,695
Impact of change in equity award forfeiture accounting		757
Restructuring, asset impairment, severance and other charges	266	0
AOI	11,913	23,552
Operating Segments | EAAA
Segment Reporting, Reconciling Item for Operating Income (Loss) from Segment to Consolidated [Line Items]
Operating Income (Loss)	5,219	(113,612)
Amortization of acquired intangible assets	1,421	1,315
Goodwill and Intangible Asset Impairment		118,563
Impact of change in equity award forfeiture accounting		650
Restructuring, asset impairment, severance and other charges	1,371	(1,118)
AOI	$ 8,011	$ 5,798