Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Income before income taxes and equity earnings (losses)

Income before income taxes and equity earnings is attributable to the following jurisdictions (in thousands):

	Year Ended December 31,
	2016		2015		2014
United States	$	234,646	$	203,269	$	178,497
Foreign	6,732		4,881		2,888
Total	$	241,378	$	208,150	$	181,385

Provision for income taxes

The provision for income taxes consisted of the following (in thousands):

	Year Ended December 31,
	2016			2015			2014
Current:
Federal	$	77,000		$	65,676		$	54,447
State and other	12,182			10,263			9,126
Total current provision for income taxes	89,182			75,939			63,573
Deferred:
Federal	4,079			4,568			6,942
State and other	(330		)	(370		)	44
Total deferred provision for income taxes	3,749			4,198			6,986
Provision for income taxes	$	92,931		$	80,137		$	70,559

Reconciliation of the U.S. federal statutory tax rate to effective tax rate on income before income taxes and equity earnings (losses)

A reconciliation of the U.S. federal statutory tax rate to our effective tax rate on Income before income taxes and equity earnings is as follows:

	Year Ended December 31,
	2016		2015		2014
Federal statutory rate	35.00	%	35.00	%	35.00	%
Change in valuation allowance	0.10		0.20		0.43
Other, primarily state income tax rate	3.40		3.30		3.47
Total effective tax rate	38.50	%	38.50	%	38.90	%

Components of deferred tax assets and liabilities

The table below presents the components of our deferred tax assets and liabilities (in thousands):

	December 31,
	2016			2015
Deferred tax assets:
Product inventories	$	7,010		$	7,101
Accrued expenses	3,978			3,303
Allowance for doubtful accounts	396			606
Total current	11,384			11,010
Component reclassified for net presentation	(5,368		)	(5,480		)
Total current, net	6,016			5,530
Leases	1,920			1,786
Share-based compensation	13,778			13,422
Uncertain tax positions	2,746			2,092
Net operating losses	5,735			5,485
Interest rate swaps	674			1,513
Other	2,465			1,159
Total non-current	27,318			25,457
Less: Valuation allowance	(5,735		)	(5,485		)
Component reclassified for net presentation	(20,781		)	(18,755		)
Total non-current, net	802			1,217
Total deferred tax assets	6,818			6,747
Deferred tax liabilities:
Trade discounts on purchases	2,698			3,001
Prepaid expenses	2,670			2,479
Total current	5,368			5,480
Component reclassified for net presentation	(5,368		)	(5,480		)
Total current, net	—			—
Intangible assets, primarily goodwill	42,930			40,197
Depreciation	12,326			8,366
Total non-current	55,256			48,563
Component reclassified for net presentation	(20,781		)	(18,755		)
Total non-current, net	34,475			29,808
Total deferred tax liabilities	34,475			29,808
Net deferred tax liability	$	27,657		$	23,061

Summary of activity related to uncertain tax positions

The following table summarizes the activity related to uncertain tax positions for the past three years (in thousands):

	2016		2015		2014
Balance at beginning of year	$	5,978	$	4,690	$	3,837
Increases for tax positions taken during a prior period	10		410		—
Increases for tax positions taken during the current period	2,819		1,782		1,664
Decreases resulting from the expiration of the statute of limitations	961		904		811
Decreases relating to settlements	—		—		—
Balance at end of year	$	7,846	$	5,978	$	4,690