Intangible Assets and Goodwill (Intangible Assets) (Details) (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Finite lived intangible assets
Gross Carrying Amount	$ 546,539,000		$ 560,342,000
Accumulated Amortization	(474,367,000)		(478,169,000)
Net Carrying Amount	72,172,000us-gaap_FiniteLivedIntangibleAssetsNet		82,173,000us-gaap_FiniteLivedIntangibleAssetsNet
Finite Lived Intangible Assets Amortization Expense	8,000,000us-gaap_AmortizationOfIntangibleAssets	6,000,000us-gaap_AmortizationOfIntangibleAssets
Customer relationships
Finite lived intangible assets
Gross Carrying Amount	329,064,000		337,438,000
Accumulated Amortization	(262,406,000)		(263,121,000)
Net Carrying Amount	66,658,000		74,317,000
Supplier relationships
Finite lived intangible assets
Gross Carrying Amount	29,000,000		29,000,000
Accumulated Amortization	(28,638,000)		(27,913,000)
Net Carrying Amount	362,000		1,087,000
Software & technology
Finite lived intangible assets
Gross Carrying Amount	157,430,000		160,825,000
Accumulated Amortization	(152,701,000)		(154,610,000)
Net Carrying Amount	4,729,000		6,215,000
Trademarks & other
Finite lived intangible assets
Gross Carrying Amount	31,045,000		33,079,000
Accumulated Amortization	(30,622,000)		(32,525,000)
Net Carrying Amount	$ 423,000		$ 554,000

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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 350

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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