Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes

The provision (benefit) for income taxes for the years ended December 31, 2010, 2011 and 2012 consists of the following:

	2010			2011			2012
Current tax expense (benefit):
Federal	$	(717	)	$	3,021		$	503
State	232			1,596			374
Foreign	2,638			5,424			5,176
	2,153			10,041			6,053
Deferred income tax expense (benefit)	13,158			(13,098		)	12,946
Provision (benefit) for income taxes	$	15,311		$	(3,057	)	$	18,999

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation between income taxes computed at the statutory federal rate and the provision for income taxes for the years ended December 31, 2010, 2011 and 2012 follows:

	2010		2011		2012
Tax provision (benefit) at statutory rate based
on income before income taxes	35.00	%	(35.00	)%	35.00	%
State income taxes, net of federal tax benefit	2.55		22.73		1.56
Stock-based compensation	0.01		(1.61	)	(0.16	)
Foreign income taxes	0.07		1.35		(5.44	)
Impact of repatriation of foreign earnings	—		(57.51	)	—
Research & development credit	(1.83	)	(32.25	)	—
Settlement of taxing authority examinations	(3.27	)	(6.55	)	(0.80	)
Non deductible/non-taxable items	1.22		(13.28	)	1.33
Other, net	(0.22	)	(10.50	)	0.45
	33.53	%	(132.62	)%	31.94	%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of the significant temporary differences which comprise the deferred income tax assets and liabilities at December 31, 2011 and 2012 are as follows:

	2011			2012
Assets:
Inventory	$	4,288		$	4,370
Net operating losses	—			191
Capitalized research and development	4,561			2,410
Deferred compensation	2,631			2,905
Accounts receivable	2,968			2,759
Employee benefits	5,984			5,915
Accrued pension	9,530			9,020
Research and development credit	1,696			3,378
Other	2,604			3,973
	34,262			34,921
Liabilities:
Goodwill and intangible assets	101,514			111,770
Depreciation	9,500			13,146
State taxes	2,975			4,157
Contingent interest	386			378
	114,375			129,451
Net liability	$	(80,113	)	$	(94,530	)

Schedule of Income before Income Tax

Income before income taxes consists of the following U.S. and foreign income:

	2010		2011			2012
U.S. income	$	37,953	$	(20,521	)	$	33,121
Foreign income	7,704		18,216			26,359
Total income	$	45,657	$	(2,305	)	$	59,480

Schedule of Unrecognized Tax Benefits Rollforward

The following table summarizes the activity related to our unrecognized tax benefits for the years ending December 31,:

	2010			2011			2012
Balance as of January 1,	$	1,869		$	1,330		$	2,343
Increases for positions taken in prior periods	52			283			30
Increases for positions taken in current periods	166			789			1,129
Decreases in unrecorded tax positions related to settlement with the taxing authorities	(757		)	—			(1,857		)
Decreases in unrecorded tax positions related to lapse of statute of limitations	—			(59		)	(58		)
Balance as of December 31,	$	1,330		$	2,343		$	1,587