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Defined Contribution And Other Employee Plans (Tables) | 12 Months Ended
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Jun. 30, 2020
Retirement Benefits [Abstract] |
Schedule Of Costs Related To Company-Sponsored Defined Contribution Plans | We sponsor three defined contribution plans established pursuant to Section 401(k) of the Internal Revenue Code. Contributions are determined under various formulas, and we contributed to each of these plans in 2020. The employer matching contribution percentage for one of these plans was increased effective January 1, 2019. Costs related to such plans for each of the years ended June 30 were as follows:
| 2020 |  | 2019 |  | 2018
Costs related to company-sponsored defined contribution plans | $ | 4,170 |  |  | $ | 2,637 |  |  | $ | 1,352 |
Schedule Of Liability For Deferred Compensation And Accrued Interest | The following table summarizes our liability for total deferred compensation and accrued interest at June 30:
| 2020 |  | 2019
Liability for deferred compensation and accrued interest | $ | 4,390 |  |  | $ | 4,740 |
Schedule Of Deferred Compensation Expense | Deferred compensation expense for each of the years ended June 30 was as follows:
| 2020 |  | 2019 |  | 2018
Deferred compensation expense | $ | 239 |  |  | $ | 239 |  |  | $ | 210 |
Multiemployer Plans, Pension [Member] |
Multiemployer Plans [Line Items] |
Schedule Of Multiemployer Plans |
|  |  |  | Pension Protection Act Zone Status |  |  |  | Fiscal Year Contributions |  |  |  |
Plan Name |  | EIN/PN |  | 2019 |  | 2018 |  | FIP/RP Status Pending / Implemented |  | 2020 |  | 2019 |  | 2018 |  | Surcharge Imposed |  | Expiration Date of Collective Bargaining Agreement
Western Conference of Teamsters Pension Plan |  | 91-6145047-001 |  | Green 12/31/18 |  | Green 12/31/17 |  | No |  | $ | 327 |  |  | $ | 388 |  |  | $ | 356 |  |  | No |  | 12/15/2021
Multiemployer Plans, Postretirement Benefit [Member] |
Multiemployer Plans [Line Items] |
Schedule Of Multiemployer Plans | Under this multiemployer plan and one additional multiemployer plan, we also contribute amounts for health and welfare benefits that are defined by each plan. These benefits are not vested. The contributions required by our participation in these plans for each of the years ended June 30 were as follows:
| 2020 |  | 2019 |  | 2018
Multiemployer health and welfare plan contributions | $ | 3,242 |  |  | $ | 3,189 |  |  | $ | 3,167 |

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- Definition Tabular disclosure of defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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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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- Definition Tabular disclosure of the quantitative and qualitative information related to multiemployer plans in which the employer participates. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947 + Details
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