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v3.3.1.900

Components of Deferred Taxes (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Income Tax Disclosure [Abstract] |  |
Self-insurance reserves | $ 88,401 | $ 84,915
Compensation accruals | 66,399 | 55,788
State and foreign net operating loss carryforwards and other state and foreign deferred tax assets | 62,541 | 60,521
Other currently non-deductible accrued liabilities | 17,213 | 16,739
Net pension liability—OCI only | 10,929 | 11,746
Doubtful accounts and other reserves | 29,616 | 18,428
Other combined items—OCI only | 457 | 2,615
Deferred income tax assets, Gross | 275,556 | 250,752
Less: Valuation Allowance | (52,567) | (52,764)
Net deferred income tax assets: | 222,989 | 197,988
Depreciable and amortizable assets | (400,809) | (362,674)
Other deferred tax liabilities | (2,960) | (2,963)
Net deferred income tax liabilities | $ (180,780) | $ (167,649)

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