XML 41 R28.htm IDEA: XBRL DOCUMENT v3.7.0.1
Share-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-based Compensation Expense [Table Text Block]
Share-based compensation expense is recognized within "General and administrative" expense on the Condensed Consolidated Statements of Operations and is summarized in the table below:
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2017
 
2016
 
2017
 
2016
 
(in millions)
Stock options
$
0.6

 
$
0.5

 
$
1.2

 
$
1.2

Restricted share awards
6.0

 
5.7

 
13.3

 
12.2

Performance share units
(4.9
)
 
4.8

 
(6.8
)
 
5.6

Restricted share units
—

 
0.1

 
—

 
0.1

Total share-based compensation expense
$
1.7

 
$
11.1

 
$
7.7

 
$
19.1
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The calculated fair value of options granted and major assumptions used in the model at the date of grant are listed below for the six months ended June 30, 2017:
 
Stock Option Assumptions
Weighted-average grant date fair value of awards granted during the period
$
6.52

Weighted-average risk-free interest rate
1.81
%
Weighted-average expected price volatility
43.8
%
Expected dividend yield
—
%
Expected term in years at the date of grant
4.5
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Stock option transactions under the terms of the LTSIP are summarized below:
 
Options Outstanding
 
Weighted-Average Exercise Price
 
Weighted-Average Remaining Contractual Term
 
Aggregate Intrinsic Value
 
 
 
(per share)
 
(in years)
 
(in millions)
Outstanding at December 31, 2016
2,151,957

 
$
25.26

 
 
 
 
Granted
409,549

 
16.98

 
 
 
 
Canceled
(202,260
)
 
27.55

 
 
 
 
Outstanding at June 30, 2017
2,359,246

 
$
23.63

 
4.07
 
$
—

Options Exercisable at June 30, 2017
1,535,515

 
$
28.04

 
3.05
 
$
—

Unvested Options at June 30, 2017
823,731

 
$
15.42

 
5.97
 
$
—
Schedule of Share-based Compensation, Restricted Share Awards Activity [Table Text Block]
 
Restricted Share Units Outstanding
 
Weighted-Average Grant Date Fair Value
 
 
 
(per share)
Unvested balance at December 31, 2016
18,034

 
$
10.12

Granted
9,924

 
16.98

Vested
(6,012
)
 
10.12

Unvested balance at June 30, 2017
21,946

 
$
13.22

Transactions involving restricted share awards under the terms of the LTSIP are summarized below:
 
Restricted Share Awards Outstanding
 
Weighted-Average Grant Date Fair Value
 
 
 
(per share)
Unvested balance at December 31, 2016
3,208,503

 
$
14.32

Granted
1,520,435

 
16.69

Vested
(1,237,333
)
 
16.41

Forfeited
(66,873
)
 
15.19

Unvested balance at June 30, 2017
3,424,732

 
$
14.60
Schedule of Other Share-based Compensation, Activity [Table Text Block]
Transactions involving performance share units under the terms of the CIP are summarized below:
 
Performance Share Units Outstanding
 
Weighted-Average Grant Date Fair Value
 
 
 
(per share)
Unvested balance at December 31, 2016
1,027,280

 
$
17.24

Granted
401,480

 
16.98

Vested and Paid
(215,439
)
 
31.63

Unvested balance at June 30, 2017
1,213,321

 
$
14.60