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Fair Value Measurements - Fair Value Assumption Inputs (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Apr. 30, 2015
Canadian Operations
Fair value measurement of assets and liabilities
Settlement amount for outstanding note receivable			$ 5.1
Impaired long-lived assets
Fair value measurement of assets and liabilities
Weighted average disposal period of impaired assets	4 years	4 years
Discount rate (as a percent)	10.00%	9.00%

X

- Definition

Weighted average disposal period used to find the present value of an amount to be paid or received in the future as an input to measure fair value.

+ References

No definition available.

+ Details

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X

- Definition

Represents the settlement amount of long-term receivable from sale of discontinued operations.

+ References

No definition available.

+ Details

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X

- References

No definition available.

+ Details

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 820



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (bbb)



-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Details

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