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Other Noncurrent Liabilities | 3 Months Ended
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Mar. 31, 2021
Other Liabilities Disclosure [Abstract] |
Other Noncurrent Liabilities | Note 8—Other noncurrent liabilities:
| December 31, |  |  | March 31, |
| 2020 |  |  | 2021 |
| (In millions) |
Operating lease liabilities | $ | 18.8 |  |  | $ | 17.6 |
Reserve for uncertain tax positions |  | 6.8 |  |  |  | 6.9 |
Accrued litigation settlement |  | 49.4 |  |  |  | 49.6 |
Deferred income |  | 58.9 |  |  |  | 61.5 |
Other postretirement benefits |  | 10.8 |  |  |  | 10.8 |
Employee benefits |  | 6.2 |  |  |  | 5.8 |
Insurance claims and expenses |  | 39.3 |  |  |  | 42.8 |
Deferred payment obligation |  | 1.3 |  |  |  | - |
Accrued development costs |  | 24.6 |  |  |  | 24.6 |
Other |  | 7.8 |  |  |  | 7.9 |
Total | $ | 223.9 |  |  | $ | 227.5 |
The accrued litigation settlement is discussed in Note 15. Deferred payment obligation – As disclosed in Note 10 to our Annual Report, we were required to make mandatory repayments to Nevada Environmental Response Trust (“NERT”) on our deferred payment obligation whenever we received distributions from BMI or LandWell and we could make voluntary repayments at any time without penalty. In the first quarter of 2021, we voluntarily fully repaid the remaining $1.5 million face value outstanding under the obligation and recognized an accretion loss of $.2 million on the early repayment.

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- Definition The entire disclosure for other liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20,24) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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