Debt (Senior Notes due 2018) (Details) (Senior Notes [Member], USD $)	Jan. 02, 2014	Feb. 07, 2014 Senior Notes 8.5% due 2018 [Member]	Dec. 17, 2010 Senior Notes 8.5% due 2018 [Member]
Debt Instrument [Line Items]
Face amount of debt instrument	$ 500,000,000		$ 250,000,000
Stated interest rate			8.50%
Debt redemption principal amount redeemed		280,400,000
Debt redemption premium amount		27,300,000
Deb redemption, accrued interest and penalties		$ 3,100,000

Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant