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.

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=66048111&loc=d3e19207-110258

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Fair Value Measurements (Details 2)	12 Months Ended
Fair Value Measurements (Details 2)	Dec. 31, 2015	Dec. 31, 2014
Long-term receivable from the sale of Canadian Operations \| Weighted average
Fair value measurement of assets and liabilities
Discount rate (as a percent)		9.00%
Impaired long-lived assets
Fair value measurement of assets and liabilities
Weighted average disposal period of impaired assets	4 years
Impaired long-lived assets \| Weighted average
Fair value measurement of assets and liabilities
Discount rate (as a percent)	12.00%