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Schedule of Other Liabilities and Deferred Credits (Detail) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
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Deferred Credits and Other Liabilities [Abstract] |  |
Pension liabilities | $ 33,020 | $ 33,124
Liability for uncertain tax positions | 44,341 | 43,790
Deferred tax liability | 2,082 | 1,913
Lease liability - operating | 4,419 |
Accrued property and liability losses | 4,008 | 4,123
Other | 10,226 | 11,075
Other liabilities and deferred credits | $ 98,096 | $ 94,025

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- Definition Noncurrent portion of the defined benefit and defined contribution pension plans, postemployment plans, and Multiemployer Plans, excluding the Postretirement benefits liability. + References No definition available. + Details
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