XBRL Cloud: Business Report

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Network	100270 - Disclosure - Income Taxes (Tables) (http://www.saiacorp.com/20161231/taxonomy/role/DisclosureIncomeTaxesTables)
Table	(Implied)

Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001177702 (http://www.sec.gov/CIK)

Income Tax Disclosure [Abstract]

Period [Axis]

2016-01-01 - 2016-12-31

Income Tax Disclosure [Abstract]

Summary of Deferred Tax Liabilities and Assets

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Deferred tax liabilities (assets) are comprised of the following at December 31 (in thousands):

	2016			2015
Depreciation	$	117,625		$	103,471
Other		1,414			3,482

Gross deferred tax liabilities		119,039			106,953
Allowance for doubtful accounts		(1,225	)		(1,350	)
Equity-based compensation		(4,538	)		(3,961	)
Employee benefits		(6,115	)		(4,847	)
Claims and insurance		(23,241	)		(20,942	)
Other		(3,721	)		(8,436	)

Gross deferred tax assets		(38,840	)		(39,536	)

Net deferred tax liability	$	80,199		$	67,417

Summary of Income Tax Provision (Benefit)

The income tax provision (benefit) for continuing operations consists of the following (in thousands):

	2016		2015			2014
Current:
U.S. federal	$	12,127	$	20,768		$	18,085
State		1,988		1,759			1,690

Total current income tax provision		14,115		22,527			19,775

Deferred:
U.S. federal		12,599		8,570			9,547
State		181		(150	)		(85	)

Total deferred income tax provision		12,780		8,420			9,462

Total income tax provision	$	26,895	$	30,947		$	29,237

Summary of Reconciliation Between Income Taxes and Effective Income Tax Provision

A reconciliation between income taxes at the federal statutory rate (35 percent) and the effective income tax provision is as follows (in thousands):

	2016			2015			2014
Provision at federal statutory rate	$	26,222		$	30,087		$	28,430
State income taxes, net		2,418			2,229			2,426
Nondeductible business expenses		462			696			589
Tax credits		(1,278	)		(1,532	)		(1,434	)
Other, net		(929	)		(533	)		(774	)

Total provision	$	26,895		$	30,947		$	29,237

Summary of Gross Unrecognized Tax Benefits

A reconciliation of the beginning and ending total amounts of gross unrecognized tax benefits is as follows (in thousands):

	2016			2015
Gross unrecognized tax benefits at beginning of year	$	1,158		$	1,165
Gross decreases in tax positions for prior years		—			—
Gross increases in tax positions for current year		490			237
Settlements		(100	)		—
Lapse of statute of limitations		(268	)		(244	)

Gross unrecognized tax benefits at end of year	$	1,280		$	1,158