Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Schedule of components of income tax provision (benefit)

Components of the income tax (benefit) expense are as follows (in thousands):

	Year ended December 31,
	2015			2014			2013
Current:
Federal	$	(3,529	)	$	21,468		$	15,225
State	283			684			3,322
Foreign	3,520			1,627			1,432
Total current	274			23,779			19,979
Deferred:
Federal	(7,756		)	2,573			1,336
State	(173		)	(1,071		)	(543		)
Foreign	1			—			—
Total deferred	(7,928		)	1,502			793
Income tax (benefit) expense	$	(7,654	)	$	25,281		$	20,772

Schedule of domestic and foreign net income (loss) before taxes

The components of income (loss) before income taxes are as follows (in thousands):

	Year ended December 31,
	2015			2014		2013
United States	$	(26,982	)	$	78,884	$	56,950
Foreign	5,866			—		—
Income (loss) before taxes	$	(21,116	)	$	78,884	$	56,950

Schedule of effective income tax rate reconciliation

A reconciliation of the U.S. federal statutory tax rate to the effective income tax rate is as follows:

	Year ended December 31,
	2015		2014		2013
Federal statutory tax (benefit) expense rate	(35.0	)%	35.0	%	35.0	%
State income taxes, net of federal benefit	0.8		2.3		2.8
Non-U.S. income taxed at different rates	(1.9	)	—		—
Return to accrual adjustments	(2.5	)	(0.9	)	0.2
Change in valuation allowance	1.3		—		—
Domestic production activities deduction	—		(2.5	)	(2.6	)
Other	1.1		(1.9	)	1.1
Effective income tax (benefit) expense rate	(36.2	)%	32.0	%	36.5	%

Schedule of deferred tax assets and liabilities

The components of deferred tax assets and liabilities are as follows (in thousands):

	December 31,
	2015			2014
Deferred tax assets:
Net operating loss carryforwards	$	15,210		$	10,183
Allowance for doubtful accounts	432			369
Inventory valuation reserves	3,734			1,896
Equity compensation	4,250			4,146
Goodwill	6,869			8,963
Accrued compensation	73			75
Foreign tax credit carryforward	865			—
Other	67			1
Total gross deferred tax assets	31,500			25,633
Valuation allowance	(1,093		)	(809		)
Total deferred tax assets, net	30,407			24,824
Deferred tax liabilities:
Property and equipment	(12,876		)	(12,066		)
Intangible assets	(18,249		)	(18,786		)
Convertible debt	(3,011		)	(4,126		)
Prepaid insurance and other	(216		)	(225		)
Total gross deferred tax liabilities	(34,352		)	(35,203		)
Net deferred tax (liabilities) assets	$	(3,945	)	$	(10,379	)

Deferred taxes are presented in the balance sheets as follows (in thousands):

	December 31,
	2015			2014
Current deferred tax assets	$	2,649		$	2,696
Non-current deferred tax assets	17,229			12,907
Non-current deferred tax liabilities	(23,823		)	(25,982		)
Net deferred tax (liabilities) assets	$	(3,945	)	$	(10,379	)