Business Combinations (Tables)

6 Months Ended

Jun. 30, 2011

Business Combinations (Tables) [Abstract]

Allocation of the purchase price for the GTI Diagnostics acquisition

Total purchase price	$	53,000
Net working capital	$	7,881
Fixed assets		966
Goodwill		28,040
Deferred tax liabilities		(11,137	)
Other intangible assets		32,100
Liabilities assumed		(4,850	)
Allocated purchase price	$	53,000

Fair values of the acquired identifiable intangible assets of the GTI Diagnostics

Patents	$	10,600
In-process research and development		11,900
Customer relationships		3,500
Trade secrets		6,100
Total	$	32,100

Future amortization expense for acquired intangible assets in the GTI Diagnostics aquisiiton

Years Ending December 31,
Remainder of 2011	$	994
2012		1,988
2013		1,988
2014		1,988
2015		1,988
Thereafter		10,316
Total	$	19,262

Changes in goodwill

Goodwill balance as of December 31, 2010	$	150,308
Additional goodwill recognized		35
Changes due to foreign currency translation		487
Goodwill balance as of June 30, 2011	$	150,830