Debt Obligations - Narrative (Details) (Senior Notes [Member], Notes Due 2016 [Member], USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 28, 2014	Sep. 29, 2013
Senior Notes [Member] \| Notes Due 2016 [Member]
Debt Instrument [Line Items]
Extinguishment of debt	$ 18.4	$ 17.4
Interest rate on debt	6.625%	6.625%
Loss on extinguishment of debt	$ 2.2	$ 2.1

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 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: 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=6850294&loc=d3e12317-112629

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=6850294&loc=d3e12355-112629

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