Organization and Summary of Significant Accounting Policies - (Details)	12 Months Ended
	Dec. 29, 2019 USD ($) Segment	Dec. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 01, 2018 USD ($)
Significant Accounting Policies Disclosure [Line Items]
Number of reportable segments | Segment	2
Share-based Compensation
Employee Stock Purchase Plan offering & expense recognition period	6 months
Deferred tax benefit from stock options exercised	$ 2,100,000
Allowance for Doubtful Accounts
Provisions	(200,000)	$ 1,800,000	$ 0
Cash and Cash Equivalents
Restricted cash	0	300,000
Interest Expense, Net
Interest expense incurred primarily on the Senior Secured Notes	(23,500,000)	(21,600,000)	(29,100,000)
Miscellaneous interest income	1,900,000	800,000	500,000
Interest expense, net	(21,600,000)	(20,800,000)	(28,600,000)
Foreign Currency
Foreign currency transaction gain (loss)	(1,100,000)	(1,100,000)	400,000
Recent Accounting Pronouncements
Operating lease right-of-use assets	42,100,000
Operating lease liability	47,600,000
Accumulated deficit	$ 712,000,000.0	724,500,000
ASC 606 Adjustment | ASC 606
Recent Accounting Pronouncements
Accumulated deficit				$ 200,000
Minimum
Significant Accounting Policies Disclosure [Line Items]
Useful life of finite-lived intangible assets	1 year
Share-based Compensation
Share-based incentive award vesting period	5 years
Maximum
Significant Accounting Policies Disclosure [Line Items]
Useful life of finite-lived intangible assets	15 years
Share-based Compensation
Share-based incentive award vesting period	10 years
Buildings and improvements | Minimum
Property and Equipment, Net
Useful life of property and equipment	15 years
Buildings and improvements | Maximum
Property and Equipment, Net
Useful life of property and equipment	39 years
Machinery and equipment | Minimum
Property and Equipment, Net
Useful life of property and equipment	3 years
Machinery and equipment | Maximum
Property and Equipment, Net
Useful life of property and equipment	10 years
Computer equipment and software | Minimum
Property and Equipment, Net
Useful life of property and equipment	1 year
Computer equipment and software | Maximum
Property and Equipment, Net
Useful life of property and equipment	10 years
Vehicles, furniture, and office equipment | Maximum
Property and Equipment, Net
Useful life of property and equipment	5 years
Allowance for Doubtful Accounts
Allowance for Doubtful Accounts
Balance at Beginning of Year	$ 2,300,000	500,000	1,500,000
Provisions	(200,000)	1,800,000	0
Write-offs/Recoveries	(200,000)	0	(1,000,000.0)
Balance at End of Year	1,900,000	2,300,000	500,000
Continuing operations
Share-based Compensation
Stock-based compensation expense, amount recognized in the consolidated financial statements	11,000,000.0	7,200,000	7,800,000
Selling, general and administrative expenses
Share-based Compensation
Stock-based compensation expense, amount recognized in the consolidated financial statements	$ 11,000,000.0	$ 7,200,000	$ 7,800,000
Stock options | Maximum
Share-based Compensation
Share-based incentive award vesting period	6 years