Debt (Details) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended
	Dec. 26, 2014	May 01, 2014	Dec. 27, 2013	Feb. 21, 2014	Nov. 20, 2012	Dec. 28, 2012
Debt Instrument [Line Items]
Long-term Debt, Net of Term Loan Discount	$ 127,048,000		$ 112,345,000
Less: current portion of long-term debt	0		(22,315,000)
Long-term debt, net of discount	127,048,000		90,030,000
Warrants issued to purchase common stock (as a percentage)					19.90%
Discount associated with warrants and common stock					(29,600,000)
Unamortized deferred loan costs recorded in other assets	10,000,000		9,300,000
Loss on extinguishment of debt	1,000,000
Write-off of debt issuance costs	200,000
Incurred lender fees	800,000
March 31, 2014 through December 31, 2014 [Member]
Debt Instrument [Line Items]
Secured Leverage Ratio	11.00
March 31, 2015 through December 31, 2015 [Member]
Debt Instrument [Line Items]
Secured Leverage Ratio	9.50
March 31, 2016 through December 31, 2016 [Member]
Debt Instrument [Line Items]
Secured Leverage Ratio	8.00
March 31, 2017 through December 31, 2017 [Member]
Debt Instrument [Line Items]
Secured Leverage Ratio	5.00
Oaktree Term A Loan [Member]
Debt Instrument [Line Items]
Long-term debt, gross amount	95,126,000		83,155,000
Stated interest rate	12.00%
Common stock issued (in shares)		8.2
Long-term Debt	81,519,000		65,580,000			53,928,000
Accretion of discount	3,968,000		3,498,000
PIK Interest	10,685,000		8,154,000
Exchange transaction issuances	1,286,000
Oaktree Term B Loan [Member]
Debt Instrument [Line Items]
Long-term debt, gross amount	50,632,000		31,082,000
Stated interest rate	10.00%
Amount of debt exchanged for term loan, common stock and cash				20,700,000
Exchange transaction result in issuance of cash				14,900,000
Exchange of shares in common stock (in shares)				1.1
Cash in exchange of common stock				2,400,000
Long-term Debt	45,529,000		24,450,000			20,510,000
Accretion of discount	1,528,000		1,373,000
PIK Interest	4,191,000		2,567,000
Exchange transaction issuances	15,360,000
Deferred Finance Costs, Net	1,500,000
Senior Convertible Notes [Member]
Debt Instrument [Line Items]
Long-term debt, gross amount	0		22,315,000
Outstanding amounts due on either Repurchase Date or maturity date		1,600,000
Oaktree Term Loans [Member]
Debt Instrument [Line Items]
Less: Term loans discount	(18,710,000)		(24,207,000)
Increase in principal balance	14,900,000
Accrued Interest	4,000,000		3,200,000
Term loan principal covenant modification fee (in percentage)				1.50%
Term loan principal covenant modification fee				1,800,000
Capital expenditure limitations, current year	12,000,000
Capital expenditures limitations, next fiscal year	14,000,000
Long-term Debt	127,048,000		90,030,000			74,438,000
Accretion of discount	5,496,000		4,871,000
PIK Interest	14,876,000		10,721,000
Exchange transaction issuances	16,646,000
Repayments principal in three years	145,800,000
Oaktree Term Loans [Member] | Common Stock [Member]
Debt Instrument [Line Items]
Common stock issued (in shares)					3.7
Interest Expense [Member] | Senior Credit Facility [Member]
Debt Instrument [Line Items]
Company incurred an additional amount			$ 1,200,000