XML 64 R44.htm IDEA: XBRL DOCUMENT v3.6.0.2
Share-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Weighted-average grant-date fair values of stock options and the assumptions used in estimating the fair values are as follows: 
 
Year Ended December 31,
 
2016
 
2015
 
2014
Weighted-average grant-date fair value per share
$
10.36

 
$
19.04

 
$
56.15

Expected term (years)
5.20

 
5.60

 
6.25

Risk-free interest rate
1.66
%
 
1.70
%
 
1.00
%
Expected volatility
61.40
%
 
61.54
%
 
63.73
%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
The following table summarizes the Company’s stock option activity:
 
 
December 31, 2016
 
Number
of Shares
 
Weighted-average
Exercise
Price
 
Aggregate Intrinsic Value
 
Weighted- average Remaining Contractual Term
Outstanding at beginning of year
698

 
$
41.52

 
 
 
 
Granted
561

 
19.33

 
 
 
 
Exercised
(18
)
 
20.17

 
 
 
 
Forfeited
(128
)
 
37.56

 
 
 
 
Outstanding at end of year
1,113

 
$
31.13

 
$
11,881

 
6.6 years
Vested and expected to vest at end of year
1,096

 
$
31.25

 
$
4,005

 
6.6 years
Exercisable at end of year
495

 
$
37.36

 
$
11,659

 
4.4 years
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
The following table summarizes the Company’s unvested restricted stock and RSUs activity:
 
December 31, 2016
 
Number
of Shares
 
Weighted-Average
Grant-Date Fair Value
Unvested at beginning of year
145

 
$
46.40

Granted
283

 
19.08

Forfeited
(35
)
 
26.45

Vested
(64
)
 
50.66

Unvested at end of year
329

 
$
24.06
Performance units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Activity [Table Text Block]
The following table summarizes the Company’s performance units activity:
 
December 31, 2016
 
Number
of Shares
 
Weighted-Average
Grant-Date Fair Value
Unvested at beginning of year
59

 
$
59.15

Granted
58

 
19.94

Forfeited
(13
)
 
37.72

Vested
(46
)
 
41.25

Unvested at end of year
58

 
$
32.39
Leveraged Restricted Share Awards [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Activity [Table Text Block]
The following table summarizes the Company’s leveraged restricted share unit awards activity:
 
December 31, 2016
 
Number
of Shares
 
Weighted-average
Grant-Date Fair Value
Unvested at beginning of year
41

 
$
92.66

Forfeited
(3
)
 
106.90

Vested
(28
)
 
68.85

Unvested at end of year
10

 
$
106.90