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Net Income (Loss) per Share (Tables)
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Earnings Attributable to Common Shareholders and Weighted Average Common Shares Outstanding
The computations of basic and diluted earnings per share are as follows:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2018
 
2017
 
2018
 
2017
 
(In thousands)
Numerator:
 
 
 
 
 
 
 
Continuing operations
 
 
 
 
 
 
 
Net income (loss) from continuing operations
$
10,286

 
$
(3,760
)
 
$
14,866

 
$
21,067

Less: Net income attributable to noncontrolling interest
(865
)
 
(48
)
 
(911
)
 
(88
)
Earnings (loss) available for diluted earnings per share
$
9,421

 
$
(3,808
)
 
$
13,955

 
$
20,979

 
 
 
 
 
 
 
 
Discontinued operations
 
 
 
 
 
 
 
Net income from discontinued operations available for diluted earnings per share
$
—

 
$
1,229

 
$
—

 
$
1,647

Denominator:
 
 
 
 
 
 
 
Weighted average common shares outstanding — basic
41,939

 
42,259

 
41,939

 
42,171

Dilutive effect of stock options, restricted stock and equity-settled awards
27

 
—

 
27

 
283

Total weighted average shares outstanding — diluted
41,966

 
42,259

 
41,966

 
42,454

Anti-dilutive awards excluded from diluted weighted average shares
—

 
1,774

 
—

 
1,663