COMMITMENTS AND CONTINGENCIES: (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended			9 Months Ended	3 Months Ended	9 Months Ended
	Dec. 31, 2013 Operating lease and licensing agreements	Dec. 31, 2013 GoDigital	Dec. 31, 2011 GoDigital	Dec. 31, 2013 Pending legal matters	Dec. 31, 2013 Threatened legal matters GoDigital	Dec. 31, 2013 Threatened legal matters GoDigital	Sep. 30, 2013 Threatened legal matters GoDigital
Commitments
Period of dispute investigation				30 days
Percentage of interest acquired			70.00%
Percentage of remaining interest acquired		30.00%
Performance of the business period						2 years
Future commitment for lease payments under noncancellable operating leases	P27Y
Future commitment for lease payments under noncancellable operating leases	$ 127.1
Accrual for gains, losses and other expenses				3.5
Consideration to purchase the founders' remaining holdings under settlement agreement					1.3
Amount recorded for the settlement which represents a settlement expense							0.7
Fair value of founders' shares recorded as the purchase price for the founders' interests					$ 0.6	$ 0.6