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Equity Compensation, Employment Agreements and Other Benefit Plans (Restricted Stock Units) (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
RSUs With Service Condition |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Outstanding at beginning of year (in shares) | 1,206,446 | 1,025,028 | 1,194,299
Outstanding at beginning of year (in dollars per share) | $ 7.57 | $ 7.67 | $ 7.38
Granted (in shares) | 461,525 | 428,802 | 447,695
Granted (in dollars per share) | $ 7.35 | $ 7.65 | $ 7.96
Settled (in shares) | (269,290) | (237,384) | (616,966)
Settled (in dollars per share) | $ 6.93 | $ 8.17 | $ 7.32
Cancelled, forfeited or expired (in shares) | (19,000) | (10,000) | 0
Cancelled/forfeited (in dollars per share) | $ 7.72 | $ 7.23 | $ 0
Outstanding at end of year (in shares) | 1,379,681 | 1,206,446 | 1,025,028
Outstanding at end of year (in dollars per share) | $ 7.62 | $ 7.57 | $ 7.67
RSUs vested but not settled at end of year (in shares) | 809,681 | 708,946 | 586,419
RSUs vested but not settled at end of year (in dollars per share) | $ 7.70 | $ 7.47 | $ 7.98
RSUs unvested at end of year (in shares) | 570,000 | 497,500 | 438,609
Weighted average grant date fair value (in dollars per share) | $ 7.50 | $ 7.71 | $ 7.25
RSUs With Market and Service Conditions |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Outstanding at beginning of year (in shares) | 1,151,250 | 1,021,250 | 863,800
Outstanding at beginning of year (in dollars per share) | $ 6.21 | $ 5.80 | $ 5.45
Granted (in shares) | 451,000 | 415,000 | 451,250
Granted (in dollars per share) | $ 6.97 | $ 6.91 | $ 6.48
Settled (in shares) | (290,000) | (275,000) | (293,800)
Settled (in dollars per share) | $ 4.81 | $ 5.73 | $ 5.83
Cancelled, forfeited or expired (in shares) | (11,000) | (10,000) | 0
Cancelled/forfeited (in dollars per share) | $ 6.71 | $ 5.64 | $ 0
Outstanding at end of year (in shares) | 1,301,250 | 1,151,250 | 1,021,250
Outstanding at end of year (in dollars per share) | $ 6.78 | $ 6.21 | $ 5.80
RSUs vested but not settled at end of year (in shares) | 441,250 | 290,000 | 275,000
RSUs vested but not settled at end of year (in dollars per share) | $ 6.48 | $ 4.81 | $ 5.73
RSUs unvested at end of year (in shares) | 860,000 | 861,250 | 746,250
Weighted average grant date fair value (in dollars per share) | $ 6.94 | $ 6.69 | $ 5.82
Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost | $ 5.5 | $ 5.2 |
Period for recognizing unrecognized compensation cost | 1 year 8 months 12 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Outstanding at beginning of year (in shares) | 2,357,696 | 2,046,278 | 2,058,099
Outstanding at beginning of year (in dollars per share) | $ 6.90 | $ 6.73 | $ 6.57
Granted (in shares) | 912,525 | 843,802 | 898,945
Granted (in dollars per share) | $ 7.16 | $ 7.29 | $ 7.22
Settled (in shares) | (559,290) | (512,384) | (910,766)
Settled (in dollars per share) | $ 5.83 | $ 6.86 | $ 6.84
Cancelled, forfeited or expired (in shares) | (30,000) | (20,000) | 0
Cancelled/forfeited (in dollars per share) | $ 7.35 | $ 6.44 | $ 0
Outstanding at end of year (in shares) | 2,680,931 | 2,357,696 | 2,046,278
Outstanding at end of year (in dollars per share) | $ 7.21 | $ 6.90 | $ 6.73
RSUs vested but not settled at end of year (in shares) | 1,250,931 | 998,946 | 861,419
RSUs vested but not settled at end of year (in dollars per share) | $ 7.27 | $ 6.70 | $ 7.26
RSUs unvested at end of year (in shares) | 1,430,000 | 1,358,750 | 1,184,859
Weighted average grant date fair value (in dollars per share) | $ 7.16 | $ 7.06 | $ 6.35
RSUs with Service Condition and both Service and Market Conditions |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Granted (in shares) | 752,500 | 692,500 | 758,750
Weighted average volatility estimated | 15.00% | 17.00% | 15.00%
Expected term | 3 years | 3 years | 3 years
Weighted average risk-free rate | 2.47% | 2.36% | 1.46%
RSUs with Service Condition, weighted average grant date fair value based on share closing price |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Granted (in shares) | 160,025 | 151,302 | 140,195
Share price (dollars per share) | $ 7.28 | $ 7.70 | $ 8.31

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