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Network
2309301 - Disclosure - Equity-based Compensation (Tables)
(http://www.aegion.com/role/EquityBasedCompensationTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000353020 (http://www.sec.gov/CIK)
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
 
Schedule of Restricted Stock and Restricted Stock Units Activity
A summary of stock award activity is as follows:
 
Years Ended December 31,
 
2016
 
2015
 
2014
 
Stock Awards

Weighted
Average
Award Date
Fair Value
 
Stock Awards
 
Weighted
Average
Award Date
Fair Value
 
Stock Awards
 
Weighted
Average
Award Date
Fair Value
Outstanding, beginning of period
1,275,707

 
$
19.60

 
767,540

 
$
21.93

 
555,025

 
$
22.79

Restricted shares awarded
—

 
—

 
—

 
—

 
242,722

 
23.76

Restricted stock units awarded
335,026

 
18.43

 
422,141

 
17.37

 
65,117

 
23.80

Performance stock units awarded
245,586

 
18.35

 
297,164

 
17.24

 
330,235

 
21.34

Restricted shares distributed
(162,554
)
 
23.49

 
(90,607
)
 
19.25

 
(118,828
)
 
23.55

Restricted stock units distributed
(23,739
)
 
20.73

 
(12,646
)
 
19.62

 
(15,277
)
 
21.25

Performance stock units distributed
—

 
—

 
—

 
—

 
—

 
—

Restricted shares forfeited
(22,045
)
 
23.34

 
(54,045
)
 
23.40

 
(104,013
)
 
23.77

Restricted stock units forfeited
(71,992
)
 
17.60

 
(27,360
)
 
18.79

 
(6,925
)
 
22.93

Performance stock units forfeited
(74,968
)
 
18.68

 
(26,480
)
 
19.50

 
(180,516
)
 
24.54

Outstanding, end of year
1,501,021

 
$
18.78

 
1,275,707

 
$
19.60

 
767,540

 
$
21.93

  
Schedule of Deferred Stock Unit Activity
The following table summarizes information about deferred stock unit activity:
 
Years Ended December 31,
 
2016
 
2015
 
2014

Deferred
Stock
Units

Weighted
Average
Award
Date
Fair Value
 
Deferred
Stock
Units
 
Weighted
Average
Award
Date
Fair Value
 
Deferred
Stock
Units
 
Weighted
Average
Award
Date
Fair Value
Outstanding, beginning of period
247,219

 
$
19.92

 
221,471

 
$
20.10

 
214,455

 
$
19.56

Awarded
45,886

 
21.22

 
53,527

 
18.56

 
38,810

 
22.89

Shares distributed
(39,660
)
 
21.29

 
(27,779
)
 
18.76

 
(31,794
)
 
19.70

Outstanding, end of year
253,445


$
19.93

 
247,219

 
$
19.92

 
221,471

 
$
20.10

  
Schedule of Stock Options Activity
A summary of stock option activity is as follows:
 
Years Ended December 31,
 
2016
 
2015
 
2014

Shares

Weighted
Average
Exercise
Price
 
Shares
 
Weighted
Average
Exercise
Price
 
Shares
 
Weighted
Average
Exercise
Price
Outstanding at January 1
288,383

 
$
21.73

 
503,134

 
$
18.18

 
1,208,824

 
$
18.54

Granted
—

 
—

 
—

 
—

 
38,820

 
24.21

Exercised
(114,307
)
 
21.33

 
(209,205
)
 
13.13

 
(526,359
)
 
16.36

Canceled/Expired
(3,823
)
 
22.24

 
(5,546
)
 
24.21

 
(218,151
)
 
25.61

Outstanding at December 31
170,253


$
21.99

 
288,383

 
$
21.73

 
503,134

 
$
18.18

 
 
 
 
 
 
 
 
 
 
 
 
Exercisable at December 31
170,253

 
$
21.99

 
284,929

 
$
21.78

 
452,236

 
$
18.12

  
Schedule Stock Option Exercises
Financial data for stock option exercises are summarized in the following table (in thousands):

Years Ended December 31,

2016
 
2015
 
2014
Amount collected from stock option exercises
$
2,438

 
$
2,748

 
$
8,614

Total intrinsic value of stock option exercises
216

 
1,108

 
3,771

Tax benefit of stock option exercises recorded in additional paid-in-capital
615

 
209

 
6

Aggregate intrinsic value of outstanding stock options
517

 
173

 
1,231

Aggregate intrinsic value of exercisable stock options
517

 
169

 
1,209

  
Schedule Valuation Assumptions
The fair value of stock options awarded during 2014 was estimated at the date of grant based on the assumptions presented in the table below:

 
Year Ended
December 31, 2014

 
Range
 
Weighted Average
Grant-date fair value
 
$11.27
 
$11.27
Volatility
 
41.6%
 
41.6%
Expected term (years)
 
7.0
 
7.0
Dividend yield
 
—%
 
—%
Risk-free rate
 
2.3%
 
2.3%