Stock-Based Compensation - Schedule of Non-Qualified Stock Options Outstanding and Exercisable (Details) - Non-Qualified Stock Options (NQO) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands |
12 Months Ended |
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Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Options outstanding (in shares) |
74
|
77
|
251
|
325
|
| Options outstanding, weighted average remaining contractual life |
5 years 6 months 10 days
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| Options outstanding, weighted average price per share (in dollars per share) |
$ 23.37
|
$ 23.30
|
$ 23.00
|
$ 22.74
|
| Options outstanding, aggregate intrinsic value |
$ 1,959
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| Range of exercise prices one |
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Options outstanding (in shares) |
55
|
|
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| Options outstanding, weighted average remaining contractual life |
5 years 8 months 8 days
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| Options outstanding, weighted average price per share (in dollars per share) |
$ 21.49
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| Options outstanding, aggregate intrinsic value |
$ 1,555
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| Exercise price per share, lower range (in dollars per share) |
$ 20.06
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| Exercise price per share, upper range (in dollars per share) |
$ 21.98
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| Range of exercise prices two |
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
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| Options outstanding (in shares) |
19
|
|
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| Options outstanding, weighted average remaining contractual life |
5 years 2 months 4 days
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| Options outstanding, weighted average price per share (in dollars per share) |
$ 29.21
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| Options outstanding, aggregate intrinsic value |
$ 404
|
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| Exercise price per share, lower range (in dollars per share) |
$ 24.61
|
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| Exercise price per share, upper range (in dollars per share) |
$ 32.49
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