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Stock-based Compensation (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jan. 31, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Stock-based compensation (benefit) expense |  | $ 900,000 | $ 1,400,000 |  | $ 3,400,000 | $ 5,400,000
Income tax benefits related to the stock-based compensation plans |  | $ 200,000 |  | $ 300,000 | $ 800,000 | $ 1,300,000
Stock options outstanding |  | 0 |  |  | 0 |
Omnibus Plan 2014 [Member] |  |  |  |  |  |
Awards vesting period | 3 years |  |  |  |  |
The 2019 Long-term Incentive Compensation Program [Member] |  |  |  |  |  |
PRSU Awards, Percentage of Target Award, Below Threshold-level Performance | 0.00% |  |  |  |  |
PRSU Awards, Percentage of Target Award, Threshold-level Performance | 50.00% |  |  |  |  |
PRSU Awards, Percentage of Target Award, Target-Level Performance | 100.00% |  |  |  |  |
PRSU Awards, Percentage of Target Award, Maximum-Level Performance | 150.00% |  |  |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Awards granted |  | 2,500 | 0 |  | 172,728 | 263,574
Restricted Stock Units (RSUs) [Member] | Omnibus Plan 2014 [Member] |  |  |  |  |  |
Total unrecognized compensation cost |  | $ 7,400,000 |  |  | $ 7,400,000 |
Weighted-average period of recognition of compensation cost |  |  |  |  | 2 years 7 months 6 days |
Total fair value of awards vested |  | $ 100,000 | $ 200,000 |  | $ 5,100,000 | $ 6,200,000
Performance-based Restricted Stock Units [Member] |  |  |  |  |  |
Awards granted |  | 0 | 0 |  | 72,143 | 57,870
Phantom Share Units (PSUs) [Member] | Phantom Stock Plan [Member] |  |  |  |  |  |
Stock-based compensation (benefit) expense |  | $ (200,000) |  |  | $ (1,100,000) | $ 100,000
Total fair value of awards vested |  | $ 7,000 | $ 1,000 |  | $ 8,000 | $ 22,000

X
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- Definition Represents the number of performance-based restricted stock units that may be earned, expressed as a percentage of the target award, for maximum-level performance. + References No definition available. + Details
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- Definition Represents the number of performance-based restricted stock units that may be earned, expressed as a percentage of the target award, for target-level performance. + References No definition available. + Details
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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