CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Balance, beginning of period (in shares) at Dec. 30, 2012		56,600,000
Balance, beginning of period at Dec. 30, 2012	$ 324.1	$ 0.0	$ 847.1	$ (0.8)	$ (522.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan, options and warrants (in shares)		300,000
Issuance of common stock for employee stock purchase plan, options and warrants	1.6		1.6
Stock-based compensation	7.4		7.4
Restricted stock issued and related taxes (in shares)		100,000
Restricted stock issued and related taxes	(0.1)		(0.1)
Net income (loss)	(37.2)				(37.2)
Balance, end of period (in shares) at Dec. 29, 2013		57,000,000
Balance, end of period at Dec. 29, 2013	295.8	$ 0.0	856.0	(0.8)	(559.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan, options and warrants (in shares)		700,000
Issuance of common stock for employee stock purchase plan, options and warrants	3.9		3.9
Stock-based compensation	3.8		3.8
Restricted stock issued and related taxes (in shares)		100,000
Restricted stock issued and related taxes	(0.3)		(0.3)
Net income (loss)	(78.0)				(78.0)
Other comprehensive income (loss), net of tax	$ (0.9)			(0.9)
Balance, end of period (in shares) at Dec. 28, 2014	57,801,978	57,800,000
Balance, end of period at Dec. 28, 2014	$ 224.3	$ 0.0	863.4	(1.7)	(637.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan, options and warrants (in shares)		900,000
Issuance of common stock for employee stock purchase plan, options and warrants	4.0		4.0
Stock-based compensation	6.4		6.4
Restricted stock issued and related taxes (in shares)		400,000
Restricted stock issued and related taxes	(0.6)		(0.6)
Net income (loss)	19.8				19.8
Other comprehensive income (loss), net of tax	$ 0.3			0.3
Balance, end of period (in shares) at Dec. 27, 2015	59,139,651	59,100,000
Balance, end of period at Dec. 27, 2015	$ 254.2	$ 0.0	$ 873.2	$ (1.4)	$ (617.6)