XML 43 R35.htm IDEA: XBRL DOCUMENT
v3.25.3

Contingencies (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Contingencies Reserve Balance | For the quarter and nine months ended September 30, 2025 the following undiscounted activity was recorded in connection with the New Idria Mercury Mine:
|  | For the Quarter Ended September 30, |  |  | For the Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Beginning reserve balance |  | $ | 11,241 |  |  | $ | 12,492 |  |  | $ | 12,425 |  |  | $ | 13,182 |
Changes in estimated environmental liability |  |  | 900 |  |  |  | 200 |  |  |  | 900 |  |  |  | 1,000 |
Payments made |  |  | (718 | ) |  |  | (908 | ) |  |  | (1,902 | ) |  |  | (2,398 | )
Ending reserve balance (1) |  | $ | 11,423 |  |  | $ | 11,784 |  |  | $ | 11,423 |  |  | $ | 11,784 |
Beginning receivable balance |  | $ | 7,050 |  |  | $ | 7,114 |  |  | $ | 8,404 |  |  | $ | 7,245 |
Changes in estimated insurance recovery |  |  | 900 |  |  |  | 700 |  |  |  | 900 |  |  |  | 1,700 |
Insurance recovery reimbursements |  |  | (483 | ) |  |  | (621 | ) |  |  | (1,837 | ) |  |  | (1,752 | )
Ending receivable balance (2) |  | $ | 7,467 |  |  | $ | 7,193 |  |  | $ | 7,467 |  |  | $ | 7,193 |
(1) As of September 30, 2025, Buckhorn has a total ending reserve balance of $11.4 million related to the New Idria Mine, of which $7.4 million is classified in Other current liabilities and $4.0 million in Other liabilities (long-term). (2) As of September 30, 2025, Buckhorn has a total receivable balance related to the probable insurance recovery of $7.5 million, of which $4.2 million is classified in Other accounts receivable and $3.3 million is classified in Other assets (long-term).

X
- Definition Tabular disclosure of contingencies reserve balance. + References No definition available. + Details
Name: | mye_ScheduleOfContingenciesReserveBalanceTableTextBlock
Namespace Prefix: | mye_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration