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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 30, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Mar. 18, 2016 | May 07, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Exercise Price, low end of range (in dollars per share) |  | $ 0.90 |  |  |  |
Exercise Price, high end of range (in dollars per share) |  | $ 9.76 |  |  |  |
Period of U.S. Treasury rates as a basis for assumed risk-free rates (in years) |  | 10 years |  |  |  |
2013 Omnibus Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares of common stock authorized under the plan (shares) |  |  |  |  |  | 8,000,000
Amended Omnibus 2013 Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares of common stock authorized under the plan (shares) |  |  |  |  | 22,145,082 |
Stock Options |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | $ 1.8 | $ 3.7 | $ 4.9 |  |
Number of share options granted during the period (in shares) |  | 1,800,000 | 700,000 | 300,000 |  |
Unrecognized compensation expense (in dollars) |  | $ 2.7 |  |  |  |
Recognition period for unrecognized compensation expense (in years) |  | 2 years 10 months 24 days |  |  |  |
Weighted average grant date fair value, options (in dollars per share) |  | $ 2.05 | $ 10.93 | $ 14.84 |  |
Total intrinsic value of stock options exercised |  | $ 6.3 | $ 5.6 | $ 28.5 |  |
Stock Options | Officers and Employees |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting rights, annual increments beginning on the grant date |  | 25% increments beginning on the first anniversary of the grant date |  |  |  |
Vesting period (in years) |  | 4 years |  |  |  |
Vesting rights percentage for grants made prior to 2011 (as a percent) |  | 25.00% |  |  |  |
Expiration period for grants made prior to 2011 (in years) |  | 10 years |  |  |  |
Anniversary period from grant date, for grants made prior to 2011 (in years) |  | 2 years |  |  |  |
Stock Options | Directors |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period (in years) |  | 4 years |  |  |  |
Expiration period (in years) |  | 10 years |  |  |  |
Vesting rights percentage for grants made prior to 2011 (as a percent) |  | 25.00% |  |  |  |
Anniversary period from grant date, for grants made prior to 2011 (in years) |  | 1 year |  |  |  |
Stock Options | Stock Plan 2003 | Officers and Employees |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Options vesting percentage |  | 25.00% |  |  |  |
Vesting rights, annual increments beginning on the grant date |  | 25% increments beginning on the second anniversary of the grant date |  |  |  |
Vesting period (in years) |  | 4 years |  |  |  |
Expiration period (in years) |  | 10 years |  |  |  |
Anniversary period from grant date (in years) |  | 2 years |  |  |  |
Stock Options | Director Stock Plan 2004 | Directors |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Expiration period (in years) |  | 10 years |  |  |  |
Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Expiration period (in years) |  | 3 years |  |  |  |
Stock-based compensation expense |  | $ 1.8 | 0.3 | 1.0 |  |
Unrecognized compensation expense (in dollars) |  | $ 0.5 |  |  |  |
Recognition period for unrecognized compensation expense (in years) |  | 1 year 2 months |  |  |  |
Granted (in shares) | 400,000 | 0 |  |  |  |
Restricted Stock | Stock Plan 2003 | Officers and Employees |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Options vesting percentage |  | 100.00% |  |  |  |
Vesting rights, annual increments beginning on the grant date |  | 100% on the third anniversary of the grant date |  |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | $ 4.0 | $ 7.5 | $ 5.9 |  |
Unrecognized compensation expense (in dollars) |  | $ 5.4 |  |  |  |
Recognition period for unrecognized compensation expense (in years) |  | 2 years |  |  |  |
Granted (in shares) |  | 1,400,000 | 600,000 | 400,000 |  |
Performance shares |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Granted (in shares) |  | 1,400,000 |  |  |  |
Performance shares | Performance Shares 2016 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Period for meeting performance goals (in years) |  | 3 years |  |  |  |
Percentage of shares paid based on total shareholder return relative to peer group of companies |  | 50.00% |  |  |  |
Percentage of shares paid based on improvement in total leverage ratio |  | 50.00% |  |  |  |
Performance shares | Performance Shares 2016 | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Granted (in shares) |  | 0 |  |  |  |
Performance shares | Performance Shares 2016 | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Granted (in shares) |  | 1,600,000 |  |  |  |
Performance shares | Performance Shares 2012 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Period for meeting performance goals (in years) |  | 3 years |  |  |  |
Performance shares | Performance Shares 2013 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of shares paid based on total shareholder return relative to peer group of companies |  | 50.00% |  |  |  |
Percentage of shares paid based on improvement in total leverage ratio |  | 50.00% |  |  |  |
Separation Expense | Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | $ 2.8 |  |  |  |
Employee Severance | Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | 1.3 |  |  |  |
Selling, General and Administrative Expenses |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | 4.9 | $ 9.7 | $ 10.3 |  |
(Loss) Income from Discontinued Operations |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | 0.3 | $ 4.7 | $ 2.4 |  |
Other Expense | Performance shares | Performance Shares 2014 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock-based compensation expense |  | $ 1.0 |  |  |  |

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