Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Computation of Earnings Per Share

Earnings per share are calculated as follows:

	Years Ended December 31,
(In thousands, except per share data)	2016		2015		2014
Basic net income per share:
Net income attributable to InfraREIT, Inc.	$	49,954	$	13,267	$	22,898
Weighted average common shares outstanding		43,668		42,983		35,053
Basic net income per share	$	1.14	$	0.31	$	0.65
Diluted net income per share:
Net income attributable to InfraREIT, Inc.	$	49,954	$	13,267	$	22,898
Weighted average common shares outstanding		43,668		42,983		35,053
Redemption of Operating Partnership units		—		—		—
Weighted average dilutive shares outstanding		43,668		42,983		35,053
Diluted net income per share	$	1.14	$	0.31	$	0.65
Due to the anti-dilutive effect, the computation of diluted     earnings per share does not reflect the following adjustments:
Net income attributable to noncontrolling interest	$	19,347	$	6,664	$	6,882
Redemption of Operating Partnership units		16,968		16,232		10,578