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Collaborative Investments (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 29, 2021 | Jun. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Net Investment Income [Line Items] |  |  |  |  |
Contribution to joint venture |  | $ 147,000 | $ 147,000 |  |
Payments to acquire notes receivable |  |  |  | $ 4,200,000 | $ 0
Convertible Promissory Note |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |
Payments to acquire notes receivable | $ 4,200,000 |  |  |  |
Note receivable, annual interest rate | 5.00% |  |  |  |
Allowance for credit loss |  | $ 0 |  | $ 0 |
Elastomer Seals Joint Venture |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |
Ownership percentage, parent |  |  | 55.00% |  |
Ownership percentage, noncontrolling owners |  |  | 45.00% |  |
Elastomer Seals Joint Venture Partner |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |
Contribution to joint venture |  |  | $ 120,000 |  |

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