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Carrying Amount of Assets Acquired and Liabilities Assumed (Detail) (Cyntellect Inc [Member], USD $)
In Thousands, unless otherwise specified
Aug. 31, 2011
Cyntellect Inc [Member]
 
Related Party Transaction [Line Items]  
Cash $ 88
Other current assets 23
Property and equipment, net 1,724
Other assets 262
Total assets acquired 2,097
Accounts payable 41
Other accrued liabilities 107
Long-term debt 116
Total liabilities assumed 264
Net assets acquired $ 1,833