XML 112 R96.htm IDEA: XBRL DOCUMENT v3.6.0.2
Stock-Based Compensation - Schedule of Nonvested Share Activity (Details) - $ / shares
shares in Millions
1 Months Ended 12 Months Ended
Apr. 30, 2015
Dec. 31, 2016
Restricted Stock    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Unvested beginning balance (in shares)   0.4
Granted (in shares) 0.4 0.0
Vested (in shares)   (0.2)
Forfeited (in shares)   0.0
Unvested ending balance (in shares)   0.2
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]    
Weighted average grant date fair value beginning (in dollars per share)   $ 21.73
Granted (in dollars per share)   0.00
Vested (in dollars per share)   21.73
Cancelled (in dollars per share)   21.73
Weighted average grant date fair value ending (in dollars per share)   $ 21.73
Performance shares    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Unvested beginning balance (in shares)   0.7
Granted (in shares)   1.4
Vested (in shares)   (0.2)
Forfeited (in shares)   (0.2)
Unvested ending balance (in shares)   1.7
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]    
Weighted average grant date fair value beginning (in dollars per share)   $ 25.53
Granted (in dollars per share)   5.36
Vested (in dollars per share)   22.43
Cancelled (in dollars per share)   11.07
Weighted average grant date fair value ending (in dollars per share)   $ 11.02