Year Ended December 31,

2023

2022

2021

Numerator:

(Loss) income from continuing operations attributable to Acadia
    Healthcare Company, Inc.

$

(21,667

)

$

273,139

$

203,276

Loss from discontinued operations

—

—

(12,641

)

Net (loss) income attributable to Acadia Healthcare
    Company, Inc.

$

(21,667

)

$

273,139

$

190,635

Denominator:

Weighted average shares outstanding for basic
   earnings per share

90,949

89,680

88,769

Effects of dilutive instruments

—

1,875

2,024

Shares used in computing diluted earnings per
   common share

90,949

91,555

90,793

Basic (loss) earnings per share attributable to Acadia
Healthcare Company, Inc. stockholders:

(Loss) income from continuing operations attributable to
     Acadia Healthcare Company, Inc.

$

(0.24

)

$

3.05

$

2.29

Loss from discontinued operations

—

—

(0.14

)

Net (loss) income attributable to Acadia Healthcare
    Company, Inc.

$

(0.24

)

$

3.05

$

2.15

Diluted (loss) earnings per share attributable to Acadia
Healthcare Company, Inc. stockholders:

(Loss) income from continuing operations attributable to
     Acadia Healthcare Company, Inc.

$

(0.24

)

$

2.98

$

2.24

Loss from discontinued operations

—

—

(0.14

)

Net (loss) income attributable to Acadia Healthcare
    Company, Inc.

$

(0.24

)

$

2.98

$

2.10