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Other Noncurrent Liabilities | 9 Months Ended
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Sep. 30, 2020
Other Liabilities Disclosure [Abstract] |
Other Noncurrent Liabilities | Note 8—Other noncurrent liabilities:
| December 31, |  |  | September 30, |
| 2019 |  |  | 2020 |
| (In millions) |
Operating lease liabilities | $ | 22.2 |  |  | $ | 19.6 |
Reserve for uncertain tax positions |  | 13.6 |  |  |  | 12.4 |
Accrued litigation settlement |  | 60.1 |  |  |  | 49.2 |
Deferred income |  | 47.4 |  |  |  | 37.1 |
Other postretirement benefits |  | 10.5 |  |  |  | 10.1 |
Employee benefits |  | 6.0 |  |  |  | 6.0 |
Insurance claims and expenses |  | 11.0 |  |  |  | 34.8 |
Deferred payment obligation |  | 9.9 |  |  |  | 9.0 |
Accrued development costs |  | 8.3 |  |  |  | 7.8 |
Other |  | 8.2 |  |  |  | 11.1 |
Total | $ | 197.2 |  |  | $ | 197.1 |
Deferred payment obligation – As disclosed in Note 6, during the first nine months of 2020 Tremont fully repaid the promissory note to NERT. As disclosed in Note 10 to our Annual Report, after repayment of such promissory note, we are now required to make mandatory repayments to NERT on our deferred payment obliation whenever we receive distributions from BMI or LandWell. In September 2020, we repaid $1.2 million pursuant to the deferred payment obligation.

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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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