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Waltham and Lexington Lease Arrangements (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2014
Waltham and Lexington Lease Arrangements [Abstract]    
Construction in Progress $ 8,397 $ 8,397
Land rent expense 375 500
Waltham lease future minimum rentals   $ 119,600