v3.10.0.1

Share-Based Compensation - Aggregate LTIP Units Issued to Board of Directors (Details) - 2015 Equity Incentive Plan - Director - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Grant Date			2016-10	2016-07	2016-04	2016-01
Grant Date Fair Value per Share			$ 17.84	$ 17.58	$ 16.81	$ 18.58
Aggregate Fair Value			$ 86	$ 92	$ 92	$ 88
LTIP Units
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Grant Date	2018-01	2017-01				2016-01
LTIP Units	28,952	31,633				29,722
Grant Date Fair Value per Share	$ 18.61	$ 18.02				$ 18.58
Aggregate Fair Value	$ 539	$ 570				$ 552
Vesting Date	2019-01	2018-01				2017-01

Share based compensation arrangement by share based payment award award vesting date.

+ References

No definition available.

+ Details

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- Definition

Share based compensation arrangement by share based payment award equity instruments grant date.

+ References

No definition available.

+ Details

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- Definition

Share based compensation arrangement by share based payment award equity instruments grant date fair value.

+ References

No definition available.

+ Details

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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

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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InfraREIT, Inc. 10-K