Long-Term Debt (Extinguishments) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 01, 2017	Apr. 01, 2017	Jul. 02, 2016	Apr. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Jun. 10, 2016
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	$ (63)		$ 51,273		$ (108)	$ 72,886
Convertible debt [Member] | 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			5,400	$ 16,500
Debt extinguishment amount	$ 5,500		16,500	34,500
Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		$ 100		5,100
Debt extinguishment amount		$ 20,500		$ 10,000
Asset based lending facility [Member] | ABL Facility due 2021 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			(200)
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
Debt Exchange, Percentage Exchanged							80.00%
Affiliate Noteholders [Member] | Exchange Offer [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt			1,200
Affiliate Noteholders [Member] | Affiliate Exchange Agreement [Member] | Senior unsecured debt [Member] | 11.5% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Debt extinguishment amount			$ 4,200