Commitments and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Sep. 30, 2013 Physician acre	Sep. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Commitment And Contingencies [Line Items]
Real property	24.74
Income tax returns filed for the tax years under examination			2011	2010	2009
Number of physicians under guarantee agreements	1
Expenditure on physician guarantees and recruitment	$ 34	$ 31
Physician Guarantees [Member]
Commitment And Contingencies [Line Items]
Remaining non-cancelable commitments	$ 0