Stock-Based Compensation and Awards - Schedule of Changes in Restricted Stock, Restricted Stock Units, Performance Units, Cash Settled Restricted Stock Units and Cash Settled Performance Units (Details)
shares in Thousands |
12 Months Ended |
|
Dec. 31, 2016
$ / shares
shares
|
|---|
| Restricted stock, restricted stock units, performance units, cash settled restricted stock units and cash settled performance units |
|
| Shares |
|
| Non-vested awards, beginning of period (in shares) |
1,004
|
| Granted (in shares) |
773
|
| Vested (in shares) |
(526)
|
| Change in expected vesting of performance units (in shares) |
138
|
| Cancelled (in shares) |
(97)
|
| Non-vested awards, end of period (in shares) |
1,292
|
| Weighted Average Grant-Date Fair Value Per Share |
|
| Non-vested awards, beginning of period (in dollars per share) | $ / shares |
$ 22.17
|
| Granted (in dollars per share) | $ / shares |
15.46
|
| Vested (in dollars per share) | $ / shares |
21.60
|
| Change in expected vesting of performance units (in dollars per share) | $ / shares |
15.46
|
| Cancelled (in dollars per share) | $ / shares |
22.03
|
| Non-vested awards, end of period (in dollars per share) | $ / shares |
$ 17.68
|
| Cash settled restricted stock units and cash settled performance units |
|
| Shares |
|
| Non-vested awards, end of period (in shares) |
182
|
| Restricted shares, restricted stock units and performance units |
|
| Shares |
|
| Non-vested awards, end of period (in shares) |
1,110
|