Long-Term Debt (Extinguishments) (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 01, 2017	Apr. 02, 2016
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt	$ (45)	$ 21,613
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
Convertible debt [Member] \| 7% senior exchangeable notes due 2017 [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		16,500
Debt extinguishment amount		$ 34,500

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration