Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes

Components of income taxes

	Federal			State			Foreign			Total
2012:
Current	$	50,911		$	6,482		$	3,368		$	60,761
Deferred		(6,083	)		414			12			(5,657	)
	$	44,828		$	6,896		$	3,380		$	55,104
2011:
Current	$	63,758		$	12,226		$	7,487		$	83,471
Deferred		1,003			(1,067	)		(3	)		(67	)
	$	64,761		$	11,159		$	7,484		$	83,404
2010:
Current	$	71,032		$	16,764		$	3,648		$	91,444
Deferred		(2,182	)		377			93			(1,712	)
	$	68,850		$	17,141		$	3,741		$	89,732

Actual income taxes differed from that obtained by applying the statutory federal income tax rate to income before income taxes

	Years Ended December 31
	2012			2011			2010
Computed "expected" income taxes	$	64,282		$	99,842		$	87,517
State income taxes, net of federal income tax benefit		3,562			6,912			10,566
Foreign rate differential		(12,908	)		(24,783	)		(11,304	)
Other		168			1,433			2,953
	$	55,104		$	83,404		$	89,732

Tax effects of temporary differences that give rise to significant portions of deferred tax assets and deferred tax liabilities

	2012			2011
Deferred tax assets (liabilities), current:
Uniform capitalization adjustment to inventory	$	6,870		$	5,271
Bad debt and other reserves		11,582			8,874
State taxes		799			1,729
Prepaid expenses		(1,961	)		(1,460	)
Total deferred tax assets, current		17,290			14,414
Deferred tax assets (liabilities), noncurrent:
Amortization and impairment of intangible assets		5,312			7,181
Depreciation of property and equipment		(8,524	)		(6,056	)
Share-based compensation		11,906			11,305
Foreign currency translation		244			(744	)
Deferred rent		3,247			169
Acquisition costs		834			808
Other		111			63
Net operating loss carryforwards		242			497
Total deferred tax assets, noncurrent		13,372			13,223
Net deferred tax assets	$	30,662		$	27,637

Reconciliation of the beginning and ending amounts of total unrecognized tax benefits

Balance at December 31, 2010	$	5,506
Gross decrease related to current year tax positions		(2,235	)
Balance at December 31, 2011	$	3,271
Gross decrease related to prior years' tax positions		—
Settlements		(3,271	)
Balance at December 31, 2012	$	—