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Income Taxes - Schedule Showing Tax Effects of Significant Temporary Differences Representing Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Deferred Tax Liabilities: |  |  |
Depreciation |  | $ (59,574) | $ (57,665)
Unrealized foreign exchange loss |  | (1,479) | (980)
Amortization of intangibles |  | (835) | (1,016)
Inventories | [1] | (5,855) | (8,429)
Other |  | (307) | (301)
Deferred Tax Liabilities, Gross |  | (68,050) | (68,391)
Deferred Tax Assets: |  |  |
Pensions |  | 5,855 | 7,971
Deferred revenue |  | 161 | 208
Other accruals and reserves |  | 12,171 | 13,123
Legal and environmental accruals |  | 7,758 | 7,143
Deferred compensation |  | 15,816 | 14,214
Bad debt and rebate reserves |  | 2,604 | 2,916
Non-U.S. subsidiaries net operating loss carryforwards |  | 3,966 | 3,869
Tax credit carryforwards |  | 5,200 | 2,141
Deferred Tax Assets, Gross |  | 53,531 | 51,585
Valuation Allowance |  | (2,994) | (3,701)
Net Deferred Tax Liabilities |  | (17,513) | (20,507)
Reconciliation to Consolidated Balance Sheet: |  |  |
Non-current deferred tax assets (in other non-current assets) | [1] | 5,878 | 4,454
Non-current deferred tax liabilities | [1] | $ (23,391) | $ (24,961)
[1] | The 2018 amounts for the noted line items have been retrospectively changed from the amounts originally reported as a result of the Company’s first quarter 2019 change in method of accounting for U.S. inventory valuation from LIFO to FIFO.

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