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Taxes on Income (Tables)

12 Months Ended

Dec. 31, 2015

Taxes on Income [Abstract]

Earnings Before Taxes

Earnings before taxes on income and details of the provision for taxes on income for the years ended December 31, 2015, 2014 and 2013 were as follows (in thousands):

		2015				2014				2013
Earnings before taxes on income — United States		$	361,712			$	454,390			$	408,678
Provision for taxes on income:
Federal:
Current		$	64,707			$	81,953			$	41,008
Deferred			59,582				72,920				97,586
State and local			9,453				14,909				13,785
		$	133,742			$	169,782			$	152,379

Schedule of Effective Income Tax Rate Reconciliation

The Company’s provision for taxes on income varied from the statutory federal income tax rate for the years ended December 31, 2015, 2014 and 2013 due to the following:

		2015				2014				2013
United States income tax statutory rate			35.0	%			35.0	%			35.0	%
State and local taxes, net of federal benefit			1.7				2.2				2.2
Other – net			.3				.2				.1
			37.0	%			37.4	%			37.3	%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant portions of the current deferred tax assets and non-current deferred tax assets and liabilities at December 31, 2015 and 2014 were as follows (in thousands):

		2015				2014
Current deferred tax assets:
Compensated absences		$	829			$	854
Allowance for doubtful accounts			3,288				3,111
Insurance accruals			4,234				2,858
Other			3,372				3,739
		$	11,723			$	10,562
Non-current deferred tax assets and liabilities:
Deferred tax assets:
Postretirement health care benefits		$	2,501			$	2,795
Insurance accruals			3,410				3,325
Deferred compensation			10,534				10,157
Unrealized loss on defined benefit plans			25,245				34,501
Operating loss carryforwards			5,188				5,219
Other			20,702				20,687
Valuation allowances			(4,716	)			(4,704	)
			62,864				71,980
Deferred tax liabilities:
Property			(604,737	)			(547,388	)
Deferred state taxes			(53,542	)			(49,503	)
Pension benefits			(8,471	)			(11,198	)
Goodwill and other intangibles			(44,185	)			(37,936	)
Other			(21,737	)			(21,724	)
			(732,672	)			(667,749	)
		$	(669,808	)		$	(595,769	)

Reconciliation of Liability for Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of the liability for unrecognized tax benefits for the years ended December 31, 2015, 2014 and 2013, is as follows (in thousands):

		2015				2014				2013
Balance at beginning of year		$	1,171			$	949			$	1,045
Additions based on tax positions related to the current year			339				470				239
Additions for tax positions of prior years			785				39				114
Reductions for tax positions of prior years			(337	)			(287	)			(413	)
Settlements			—				—				(36	)
Balance at end of year		$	1,958			$	1,171			$	949

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
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Tabular disclosure of 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 (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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