RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES: (Details) (USD $)	6 Months Ended				12 Months Ended	6 Months Ended					12 Months Ended	6 Months Ended	12 Months Ended		12 Months Ended		6 Months Ended		12 Months Ended		12 Months Ended			6 Months Ended
	Sep. 30, 2014 Continuing operations	Sep. 30, 2014 Discontinued operations	Sep. 30, 2014 Restructuring Activity 2015 [Member]	Sep. 30, 2014 Fiscal 2014	Mar. 31, 2014 Fiscal 2014	Sep. 30, 2014 Associate-related reserves Continuing operations	Sep. 30, 2014 Associate-related reserves Discontinued operations	Sep. 30, 2014 Associate-related reserves United States, Australia, China and Europe	Sep. 30, 2014 Associate-related reserves Restructuring Activity 2015 [Member]	Sep. 30, 2014 Associate-related reserves Restructuring Activity 2015 [Member] United States And Europe [Member]	Mar. 31, 2014 Associate-related reserves Fiscal 2014	Sep. 30, 2014 Associate-related reserves Fiscal 2014 United States, Australia, China and Europe	Mar. 31, 2014 Associate-related reserves Fiscal 2014 United States, Australia, and Europe	Sep. 30, 2014 Associate-related reserves Fiscal 2014 United States, Australia, and Europe	Mar. 31, 2013 Associate-related reserves Fiscal 2013 United States, Australia, and Europe	Sep. 30, 2014 Associate-related reserves Fiscal 2013 United States, Australia, and Europe	Sep. 30, 2014 Ongoing contract costs Continuing operations	Sep. 30, 2014 Ongoing contract costs Restructuring Activity 2015 [Member]	Mar. 31, 2014 Ongoing contract costs Fiscal 2014	Sep. 30, 2014 Ongoing contract costs Fiscal 2014	Mar. 31, 2012 Ongoing contract costs Fiscal 2012	Sep. 30, 2014 Ongoing contract costs Fiscal 2012	Sep. 30, 2014 Ongoing contract costs Fiscal 2008 and 2009	Sep. 30, 2014 Facility Closing [Member] Fiscal 2014
Restructuring activity
Balance at the beginning of the period	$ 16,759,000					$ 6,542,000								$ 2,400,000		$ 100,000	$ 10,217,000			$ 3,200,000		$ 700,000	$ 4,800,000
Payments	(8,268,000)					(6,392,000)											(1,876,000)
Charges and adjustments	7,414,000	273,000		7,600,000	17,800,000	4,884,000	273,000	1,000,000	4,900,000	4,900,000	14,000,000	1,000,000	14,000,000		2,800,000		2,530,000	2,500,000	3,800,000		2,600,000			200,000
Balance at the end of the period	15,905,000	273,000				5,034,000	273,000			2,500,000				2,400,000		100,000	10,871,000	2,100,000		3,200,000		700,000	4,800,000
Restructuring charges			$ 7,600,000