Segment and Major Customer Information (Detail)	3 Months Ended		9 Months Ended	3 Months Ended	9 Months Ended
	Mar. 31, 2013 Customer One [Member]	Mar. 31, 2012 Customer One [Member]	Mar. 31, 2012 Customer One [Member]	Mar. 31, 2012 Customer Two [Member]	Mar. 31, 2012 Customer Two [Member]	Mar. 31, 2013 No Customer [Member]
Entity-Wide Revenue, Major Customer, Percentage	11.00%	13.00%	11.00%	10.00%	11.00%	10.00%