Long-Term Debt (Debt Extinguishment) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jul. 02, 2016	Apr. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			$ 82,481	$ (1,252)
Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		$ 16,500	(100)
Debt extinguishment amount		34,500	5,700
Junior subordinated debt [Member] | 8.500% junior secured priority notes due 2022 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			2,300
Debt extinguishment amount			7,000
Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		5,100	(100)	(600)
Debt extinguishment amount		10,000	20,000	22,600
Other debt including capital leases [Member] | Equipment note [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt				(700)
Debt extinguishment amount				12,300
Discount [Member] | Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		16,800
Discount [Member] | Junior subordinated debt [Member] | 8.500% junior secured priority notes due 2022 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			2,500
Discount [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		5,300
Unamortized Debt Issuance Costs [Member] | Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		(300)
Unamortized Debt Issuance Costs [Member] | Junior subordinated debt [Member] | 8.500% junior secured priority notes due 2022 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			(100)
Unamortized Debt Issuance Costs [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		(100)		(200)
Unamortized Debt Issuance Costs [Member] | Asset based lending facility [Member] | ABL Facility due 2021 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	$ (200)
Unamortized Debt Issuance Costs [Member] | Other debt including capital leases [Member] | Equipment note [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt				(500)
Original Issuance Discount [Member] | Junior subordinated debt [Member] | 8.500% junior secured priority notes due 2022 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			(100)
Original Issuance Discount [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		$ (100)		(200)
Fees Paid to Third Parties [Member] | Other debt including capital leases [Member] | Equipment note [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt				(200)
Premiums [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt				$ (200)
Allianz 7% notes purchase agreement [Member] | Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			12,800
Debt extinguishment amount			37,500
Allianz 7% notes purchase agreement [Member] | Discount [Member] | Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			15,000
Allianz 7% notes purchase agreement [Member] | Warrant [Member] | Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			(1,300)
Allianz 7% notes purchase agreement [Member] | Transaction Fees [Member] | Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			(600)
Allianz 7% notes purchase agreement [Member] | Unamortized Debt Issuance Costs [Member] | Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			$ (300)
Exchange Offer [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	46,100
Exchange Offer [Member] | Discount [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	49,600
Exchange Offer [Member] | Transaction Fees [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	(1,500)
Exchange Offer [Member] | Unamortized Debt Issuance Costs [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	(800)
Exchange Offer [Member] | Original Issuance Discount [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	(1,200)
Exchange Offer [Member] | Affiliate noteholders [Member] | Discount [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	1,400
Affiliate exchange agreement [Member] | Affiliate noteholders [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Debt extinguishment amount	$ 4,200