Income Taxes (Tables)

12 Months Ended

Dec. 31, 2011

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes

The provision (benefit) for income taxes for the years ended December 31, 2009, 2010 and 2011 consists of the following:

	2009			2010			2011
Current tax expense (benefit):
Federal	$	(1,281	)	$	(717	)	$	3,021
State	791			232			1,596
Foreign	2,267			2,638			5,424
	1,777			2,153			10,041
Deferred income tax expense (benefit)	4,241			13,158			(13,098		)
Provision (benefit) for income taxes	$	6,018		$	15,311		$	(3,057	)

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, 2009, 2010 and 2011 follows:

	2009		2010		2011
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	5.59		2.55		22.73
Stock-based compensation	1.59		0.01		(1.61	)
Foreign income taxes	(2.90	)	0.07		1.35
Impact of repatriation of foreign earnings	—		—		(57.51	)
Research & development credit	(4.46	)	(1.83	)	(32.25	)
Settlement of taxing authority examinations	(5.60	)	(3.27	)	(6.55	)
Non deductible/non-taxable items	2.86		1.22		(13.28	)
Other, net	1.07		(0.22	)	(10.50	)
	33.15	%	33.53	%	(132.62	)%

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, 2010 and 2011 are as follows:

	2010			2011
Assets:
Inventory	$	4,509		$	4,288
Net operating losses	3,091			—
Capitalized research and development	3,213			4,561
Deferred compensation	2,381			2,631
Accounts receivable	2,903			2,968
Employee benefits	2,877			2,842
Accrued pension	4,309			9,530
Research and development credit	4,581			1,696
Foreign tax credit	2,079			—
Other	8,558			5,746
Valuation allowance	(226		)	—
	38,275			34,262
Liabilities:
Goodwill and intangible assets	108,230			101,514
Depreciation	7,446			9,500
State taxes	3,443			2,975
Contingent interest	14,717			386
	133,836			114,375
Net liability	$	(95,561	)	$	(80,113	)

Schedule of Income before Income Tax

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

	2009		2010		2011
U.S. income	$	10,108	$	37,953	$	(20,521	)
Foreign income	8,047		7,704		18,216
Total income	$	18,155	$	45,657	$	(2,305	)

Schedule of Unrecognized Tax Benefits Rollforward

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

	2009			2010			2011
Balance as of January 1,	$	2,869		$	1,869		$	1,330
Increases for positions taken in prior periods	139			52			283
Increases for positions taken in current periods	183			166			789
Decreases in unrecorded tax positions related to settlement with the taxing authorities	(1,322		)	(757		)	—
Decreases in unrecorded tax positions related to lapse of statute of limitations	—			—			(59		)
Balance as of December 31,	$	1,869		$	1,330		$	2,343