Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Taxes

Schedule of provision for income taxes relating to continuing operations

The provision for income taxes relating to continuing operations consists of the following (in thousands):

	December 31,
	2016		2015		2014
Current—
Federal	$	32,721	$	27,564	$	13,402
State and Puerto Rico		4,683		4,065		2,810
		37,404		31,629		16,212
Deferred—
Federal		(2,101)		(1,481)		(308)
State and Puerto Rico		862		1,076		(4,290)
		(1,239)		(405)		(4,598)
	$	36,165	$	31,224	$	11,614

Schedule of difference in income taxes provided for and the amounts determined by applying the federal statutory tax rate to income before income taxes results

The difference in income taxes provided for and the amounts determined by applying the federal statutory tax rate to income before income taxes results from the following (in thousands):

	December 31,
	2016		2015		2014
Income tax expense at the statutory rate of 35%	$	35,371	$	31,032	$	14,080
Changes resulting from—
State income taxes, net of federal tax effect		4,262		3,432		1,653
Increase (decrease) in valuation allowance		(1,254)		463		(1,944)
Increase (decrease) in tax contingency reserves		20		(72)		(40)
Increase (decrease) from noncontrolling interests		—		(2,827)		(1,938)
Non-deductible expenses		825		751		704
Equity based stock compensation deduction		(885)		—		—
Production activity deduction		(2,026)		(1,701)		(694)
Purchase accounting adjustments		—		—		(46)
Other		(148)		146		(161)
	$	36,165	$	31,224	$	11,614

Schedule of significant components of the net deferred tax assets and net deferred tax liabilities as reflected on the balance sheet

Significant components of the net deferred tax assets and net deferred tax liabilities as reflected on the balance sheet are as follows (in thousands):

	Year Ended
	December 31,
	2016		2015
Deferred income tax assets—
Accounts receivable and allowance for doubtful accounts	$	1,627	$	1,889
Stock compensation		3,036		3,080
Accrued liabilities and expenses		23,000		19,174
State net operating loss carryforwards		5,053		6,781
Goodwill		875		—
Other		759		830
Total deferred income tax assets		34,350		31,754
Deferred income tax liabilities—
Property and equipment		(4,398)		(5,572)
Long-term contracts		(637)		(728)
Goodwill		—		(6,037)
Intangible assets		(737)		(156)
Other		(513)		(357)
Total deferred income tax liabilities		(6,285)		(12,850)
Less—Valuation allowance		(3,184)		(4,438)
Net deferred income tax assets	$	24,881	$	14,466

Schedule of deferred income tax assets and liabilities included in the consolidated balance sheets

The deferred income tax assets and liabilities reflected above are included in the consolidated balance sheet as follows (in thousands):

	December 31,
	2016		2015
Deferred income tax assets	$	27,170	$	16,276
Deferred income tax liabilities	$	2,289	$	1,810

Schedule of reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding accrued interest and penalties

A reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding accrued interest and penalties, is as follows (in thousands):

	Year Ended
	December 31,
	2016		2015		2014
Balance at beginning of year	$	240	$	343	$	413
Additions based on tax positions related to the current year		—		—		—
Additions for tax positions of prior years		—		—		—
Reductions for tax positions of prior years		—		(103)		(70)
Settlements		—		—		—
Balance at end of year	$	240	$	240	$	343