Earnings Per Share

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Earnings Per Share

4. Earnings Per Share

The following table sets forth the computation of basic and diluted earnings (loss) per share for the years ended December 31, 2022, 2021 and 2020 (in thousands, except per share amounts):

	Year Ended December 31,
	2022		2021			2020
Numerator:
Income from continuing operations attributable to Acadia     Healthcare Company, Inc.	$	273,139	$	203,276		$	140,258
Loss from discontinued operations		—		(12,641	)		(812,390	)
Net income (loss) attributable to Acadia Healthcare     Company, Inc.	$	273,139	$	190,635		$	(672,132	)
Denominator:
Weighted average shares outstanding for basic    earnings per share		89,680		88,769			87,875
Effects of dilutive instruments		1,875		2,024			720
Shares used in computing diluted earnings per    common share		91,555		90,793			88,595
Basic earnings (loss) per share attributable to Acadia    Healthcare Company, Inc. stockholders:
Income from continuing operations attributable to Acadia     Healthcare Company, Inc.	$	3.05	$	2.29		$	1.60
Loss from discontinued operations		—		(0.14	)		(9.25	)
Net income (loss) attributable to Acadia Healthcare     Company, Inc.	$	3.05	$	2.15		$	(7.65	)
Diluted earnings (loss) per share attributable to Acadia    Healthcare Company, Inc. stockholders:
Income from continuing operations attributable to Acadia     Healthcare Company, Inc.	$	2.98	$	2.24		$	1.58
Loss from discontinued operations		—		(0.14	)		(9.17	)
Net income (loss) attributable to Acadia Healthcare     Company, Inc.	$	2.98	$	2.10		$	(7.59	)

Approximately 0.1 million, 0.3 million and 1.9 million shares of common stock issuable upon exercise of outstanding stock options were excluded from the calculation of diluted earnings per share for the years ended December 31, 2022, 2021 and 2020, respectively, because their effect would have been anti-dilutive.