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Income taxes - deferred tax assets and liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Deferred tax assets: |  |
Tax loss and credit carryforwards | $ 210,055 | $ 136,046
Pension | 28,147 | 46,563
Reserves and accruals | 62,378 | 52,343
Other | 3,619 | 17,704
Less: valuation allowances | (104,799) | (104,520)
Total deferred tax assets | 199,400 | 148,136
Deferred tax liabilities: |  |
Property, plant and equipment | 22,299 | 32,209
Intangibles — stock acquisitions | 553,245 | 321,707
Unremitted foreign earnings | 223,494 | 63,419
Other | 228 | 466
Total deferred tax liabilities | 799,266 | 417,801
Net deferred tax liability | $ (599,866) | $ (269,665)

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