Fair value portion of assets classified as held for sale.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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No definition available.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Fair value portion of notes payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Long-Lived Assets, Impairment Charge

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Fair Value (Details) - USD ($)		3 Months Ended	12 Months Ended
Fair Value (Details) - USD ($)	Oct. 31, 2015	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Goodwill impairment charge	$ 0		$ 0	$ 9,246,000
Carrying value and fair value of long-term debt
Variable-rate long-term debt, Carrying Value			735,000,000		$ 817,000,000
Variable-rate long-term debt, Fair Value			735,000,000		$ 817,000,000
Vetstreet [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-lived asset balance			$ 4,800,000
Vetstreet [Member] \| Nonrecurring [Member] \| Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Goodwill impairment charge		$ 9,200,000
Impairment charge of long-lived assets		$ 17,800,000