Fair Value Assumptions, Annual Inflation Rate

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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=66048111&loc=d3e19207-110258

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- Definition

The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2921-110230

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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Fair value measurements (Nonrecurring Fair Value Measurements) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Nonrecurring Fair Value Measurements
Loss on impairment of other assets		$ 179
Significant Unobservable Inputs (Level 3) \| Nonrecurring Fair Value Measurements
Nonrecurring Fair Value Measurements
Annual inflation rate			2.30%	2.42%
Loss on impairment of other assets	$ 6,015		$ 0	$ 0
Significant Unobservable Inputs (Level 3) \| Minimum \| Nonrecurring Fair Value Measurements
Nonrecurring Fair Value Measurements
Credit-adjusted risk-free interest rate			5.13%	8.20%
Significant Unobservable Inputs (Level 3) \| Maximum \| Nonrecurring Fair Value Measurements
Nonrecurring Fair Value Measurements
Credit-adjusted risk-free interest rate			7.63%	20.00%