Goodwill and Intangibles Assets (Tables)

6 Months Ended

Jun. 30, 2012

Goodwill and Intangibles Assets [Abstract]

Activity related to Goodwill

Goodwill at December 31, 2011	$	22,538
Increase in goodwill due to MSDSonline acquisition on March 30, 2012 (Note 4)		15,847
Estimated increase in goodwill due to preliminary allocation of acquisition price for subsidiary acquisition (Note 4)		17,087
Goodwill at June 30, 2012	$	55,472

Summary of Intangible Assets

		As of June 30, 2012
Intangible Assets	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	3-11 years	$	33,757	$	(3,438	)	$	30,319
Trademarks/trade names	3-11 years		8,524		(490	)		8,034
Technology	5-10 years		3,459		(320	)		3,139
Non-compete agreements	2-5 years		3,916		(373	)		3,543
Intellectual property	5 years		41		(8	)		33
			49,697		(4,629	)	$	45,068
Other intellectual property	Indefinite		400		—			400
		$	50,097	$	(4,629	)	$	45,468

		As of December 31, 2011
Intangible Assets	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	3-11 years	$	13,317	$	(2,344	)	$	10,973
Trademarks/trade names	3-11 years		1,547		(243	)		1,304
Technology	10 years		1,559		(149	)		1,410
Non-compete agreements	2-5 years		336		(29	)		307
Intellectual property	5 years		41		(4	)		37
			16,800		(2,769	)		14,031
Other intellectual property	Indefinite		400		—			400
		$	17,200	$	(2,769	)	$	14,431

Estimated amortization expense

2012 (remaining six months)	$	2,884
2013	$	5,754
2014	$	5,705
2015	$	4,797
2016	$	4,462
Thereafter	$	21,466
Remaining amortization expense	$	45,068