
	2016		2015
Deferred Tax Assets:
Pension liabilities	$	27,087	$	27,155
Stock compensation		18,943		20,170
Foreign tax credit carryforward		10,813		7,471
Net operating loss carryforwards		5,150		5,053
U.S. state tax credits		8,103		8,554
Vacation		4,783		4,167
Workers compensation		3,575		4,693
Other		12,651		6,503
Total gross deferred tax assets		91,105		83,766
Less valuation allowance		(4,070)		(6,125)
Net deferred tax assets		87,035		77,641
Deferred Tax Liabilities:
Depreciation, amortization and leases		39,189		47,154
Acquisition related intangibles		30,417		15,720
Total gross deferred tax liabilities		69,606		62,874
Net deferred tax assets	$	17,429	$	14,767

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months.

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