Transition Period Comparative Data (Notes)

12 Months Ended

Sep. 30, 2020

Transition Period Comparative Data [Abstract]

Transition Period Comparative Disclosures [Text Block]

Transition Period Comparative Data

The following table presents certain financial information for the nine months ended September 30, 2018 and 2017 (in millions, except per share amounts).

	For the Nine Months Ended September 30,
	2018		2017
			(Unaudited)
Revenues	$	78.3	$	83.5
Cost of sales	49.5		90.1
Selling, general and administrative expense	19.4		51.2
Equity in earnings of unconsolidated ventures	(4.8)		(10.9)
Gain on sale of assets	(27.8)		(113.4)
Interest expense	3.7		6.4
Interest and other income	(6.4)		(2.4)
Income from continuing operations before taxes	44.7		62.5
Income tax (benefit) expense	(25.3)		33.4
Net income from continuing operations	70.0		29.1
Income from discontinued operations, net of taxes	—		38.8
Net income	70.0		67.9
Net income attributable to noncontrolling interests	1.2		0.1
Net income attributable to Forestar Group Inc.	$	68.8	$	67.8
Weighted Average Common Shares Outstanding:
Basic	41.9		42.2
Diluted	42.0		42.5
Net Income per Basic Share:
Continuing operations	$	1.64	$	0.69
Discontinued operations	$	—	$	0.92
Net income per basic share	$	1.64	$	1.61
Net Income per Diluted Share:
Continuing operations	$	1.64	$	0.68
Discontinued operations	$	—	$	0.91
Net income per diluted share	$	1.64	$	1.59