|
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 |