Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment (Detail)

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Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Jun. 30, 2012
Cost:    
Land $ 7,505 $ 7,473
Buildings and improvements 125,783 123,257
Laboratory equipment 32,044 31,658
Office equipment 5,823 5,710
Property, Plant and Equipment, Gross, Total 171,155 168,098
Accumulated depreciation and amortization (76,235) (74,310)
Property and equipment, net $ 94,920 $ 93,788