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Schedule Of Comparison Of Balance Sheet Assets By Operating Segment (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Jun. 30, 2013
Segment Reporting Information [Line Items]    
Net equipment and leasehold improvements $ 34,594 $ 27,602
Total assets by segment 823,814 803,821
Operating Segments
    
Segment Reporting Information [Line Items]    
Net equipment and leasehold improvements 34,594 27,602
Total assets by segment 553,228 272,757
Operating Segments | Research
    
Segment Reporting Information [Line Items]    
Net equipment and leasehold improvements 8,199 8,590
Total assets by segment 67,999 82,517
Operating Segments | Molecular Diagnostics
    
Segment Reporting Information [Line Items]    
Net equipment and leasehold improvements 24,316 15,769
Total assets by segment 409,795 110,329
Operating Segments | Pharmaceutical and Clinical Services
    
Segment Reporting Information [Line Items]    
Net equipment and leasehold improvements 2,079 3,243
Total assets by segment $ 75,434 $ 79,911