Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Schedule of Unrecognized Tax Benefits Roll Forward

Our uncertain tax benefits, and changes thereto, during 2015, 2014, and 2013 were as follows: 

	2015			2014			2013
Balance at January 1,	$	3,104		$	3,419		$	3,530
Additions based on tax positions related to current year	464			490			516
Additions based on tax positions of prior years	—			—			—
Reductions for tax positions of prior years	(252		)	(477		)	(567		)
Settlements	(1,069		)	(328		)	(60		)
Balance at December 31,	$	2,247		$	3,104		$	3,419

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation between the “statutory” federal income tax rate and the effective tax rate in the consolidated statements of income is as follows: 

	For the Years Ended December 31,
	2015		2014		2013
“Statutory” federal tax rate	35.0	%	35.0	%	35.0	%
State and local income taxes, net of federal benefit	3.8		3.5		3.6
Other, net	1.2		1.8		1.2
Effective tax rate	40.0	%	40.3	%	39.8	%

Schedule of Income before Income Tax, Domestic and Foreign

The components of income before taxes and the provision for income taxes recorded in the consolidated statements of income are as follows: 

	For the Years Ended
Components of Income before Taxes	2015		2014		2013
Domestic	$	143,144	$	136,656	$	127,858
Foreign	9,197		10,155		7,093
Income before taxes	$	152,341	$	146,811	$	134,951

Schedule of Components of Income Tax Expense Benefit

	For the Years Ended
Components of Income Tax Provision	2015			2014			2013
Current expense
U.S. Federal	$	46,174		$	44,713		$	47,790
State	7,996			7,266			7,066
Foreign	2,666			3,058			2,217
Total current expense	$	56,836		$	55,037		$	57,073
Deferred expense (benefit)
U.S. Federal	$	3,224		4,049			(2,983		)
State	958			47			(458		)
Foreign	(9		)	(8		)	45
Total deferred expense (benefit)	$	4,173		$	4,088		$	(3,396	)
Total income tax provision	$	61,009		$	59,125		$	53,677

Schedule of Deferred Tax Assets and Liabilities

The following deferred tax assets (liabilities) were recorded at December 31: 

Assets (Liabilities)	2015			2014
Postretirement benefits	$	29,184		$	29,736
Payroll accruals	2,995			2,912
Bad debt reserves	1,653			2,106
Other deferred tax assets	9,438			8,623
Pension	60,645			42,836
Inventory	7,173			3,351
Subtotal	111,088			89,564
Less: valuation allowances	(402		)	(393		)
Deferred tax assets	110,686			89,171
Fixed assets	(40,086		)	(33,857		)
Computer software	(6,412		)	(3,904		)
Other deferred tax liabilities	(2,438		)	(1,974		)
Deferred tax liabilities	(48,936		)	(39,735		)
Net deferred tax assets	$	61,750		$	49,436

Deferred income taxes included in non-current assets (liabilities) at December 31 were: 

	2015			2014
Deferred tax assets included in other non-current assets	$	62,047		$	49,801
Deferred tax liabilities included in other non-current liabilities	(297		)	(365		)

Summary of Operating Loss Carryforwards

Operating loss carryforwards included in net deferred tax assets at December 31 were:

	2015		2014
Foreign net operating losses(1)	$	349	$	363
State net operating losses(2)	563		759

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⁽²⁾Expire between 2016 and 2031