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
Mar. 31, 2012
Jun. 30, 2011
Cost:    
Land $ 7,494 $ 7,497
Buildings and improvements 122,731 119,833
Laboratory equipment 31,503 30,315
Office equipment 5,754 5,407
Property, Plant and Equipment, Gross, Total 167,482 163,052
Accumulated depreciation and amortization (72,868) (67,654)
Property and equipment, net $ 94,614 $ 95,398