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401(k) Profit Sharing, Deferred Compensation and Long-term Incentive Plans (Tables) | 12 Months Ended
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Dec. 31, 2020
Postemployment Benefits [Abstract] |
Schedule of Long-term Incentive Plan | The following is a summary related to our SERP:
|  | Year Ended December 31,
(Dollars in millions) |  | 2020 |  | 2019 |  | 2018
Compensation expense |  | $ | 1.2 |  |  | $ | 0.9 |  |  | $ | 1.3 |
Total discretionary contribution |  | $ | 0.9 |  |  | $ | 0.3 |  |  | $ | 0.8 |
Guaranteed annual return |  | 5.00 | % |  | 5.00 | % |  | 5.00 | %

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- Definition Tabular disclosure of arrangements with individual employees that are not equity-based payments or pensions and other postretirement benefits, which are generally employment contracts between the entity and selected officers or key employees containing a promise by the employer to pay certain amounts at designated future dates, usually including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Examples may include profit sharing, deferred bonuses or certain split-dollar life insurance arrangements. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period and the carrying amount as of the balance sheet date of the related liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 25 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6409733&loc=d3e19524-108361 + Details
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