Rendering

Component: (Network and Table)
Network
2323301 - Disclosure - Long-Term Incentive Plan (Tables)
(http://www.americanmidstream.com/role/LongTermIncentivePlanTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001513965 (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
The following table summarizes activity in our phantom unit-based awards for the years ended December 31, 2016, 2015 and 2014:
 
 
Units
 
Weighted-Average Grant Date Fair Value Per Unit
 
Aggregate Intrinsic Value (1) (In thousands)
Outstanding shares at December 2013
 
75,529

 
$
17.62

 
$
2,045

Granted
 
188,946

 
20.80

 
 
Forfeited
 
(12,009
)
 
(18.28
)
 
 
Vested
 
(51,334
)
 
(20.89
)
 
 
Outstanding shares at December 2014
 
201,132

 
$
19.85

 
$
3,964

Granted
 
546,329

 
12.25

 
 
Forfeited
 
(31,298
)
 
(15.62
)
 
 
Vested
 
(146,404
)
 
(18.47
)
 
 
Outstanding shares at December 2015
 
569,759

 
$
13.15

 
$
4,609

Granted
 
1,374,226

 
2.14

 
 
Forfeited
 
(411,794
)
 
(2.60
)
 
 
Vested
 
(286,348
)
 
(12.18
)
 
 
Outstanding shares at December 2016
 
1,245,843

 
$
4.72

 
$
22,674



(1) The intrinsic value of phantom units was calculated by multiplying the closing market price of our underlying stock on December 31, 2016, 2015 and 2014 by the number of phantom units.
  
Schedule of stock options, valuation assumptions
The Black-Scholes pricing model was used to determine the fair value of our options grants using the following assumptions:
 
Years Ended December 31,
 
2016
 
2015
Weighted average common unit price volatility
61.1
%
 
47.0
%
Expected distribution yield
12.6
%
 
26.3
%
Weighted average expected term (in years)
4.10

 
3.5

Weighted average risk-free rate
1.1
%
 
1.3
%
  
Options, grants in period, weighted average grant date fair value
The following table summarizes our option activity for the years ended December 31, 2016 and 2015:
 
 
Units
 
Weighted-Average Exercise Price
 
Weighted-Average Grant Date Fair Value per Unit
 
Aggregate Intrinsic Value (1) (In thousands)
 
Weighted Average Remaining Contractual Life (Years)
Outstanding at December 31, 2014
 
—

 
$
—

 
$
—

 
$
—

 
—

Granted
 
200,000

 
7.50

 
0.33

 
—

 
—

Vested
 
—

 
—

 
 
 
—

 
—

Forfeited
 
—

 
—

 
 
 
—

 
—

Outstanding at December 31, 2015
 
200,000

 
$
7.50

 
$
0.33

 
$
118

 
4.2

Granted
 
75,000

 
13.13

 
2.65

 
—

 
—

Vested
 
—

 
—

 
 
 
—

 
—

Forfeited
 
—

 
—

 
 
 
—

 
—

Outstanding at December 31, 2016
 
275,000

 
$
9.03

 
$
0.96

 
$
2,522

 
5.0


(1) The intrinsic value of the stock option is the amount by which the current market value of the underlying stock exceeds the exercise price of the option.