SUPPLEMENTAL GUARANTOR AND NON-GUARANTOR CONDENSED CONSOLIDATING FINANCIAL STATEMENTS (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Net income (loss)	$ 145,157	$ 47,348	$ 322,619	$ 326,367
Other comprehensive income (loss):
Foreign currency translation adjustments, net of zero tax	(13,960)	(10,603)	(43,457)	(21,575)
Unrealized gain (loss) on derivative instruments and other, net of zero tax	1,097	(3,088)	516	3,015
Comprehensive income (loss)	132,294	33,657	279,678	307,807
Parent
Net income (loss)	145,157	47,348	322,619	326,367
Other comprehensive income (loss):
Foreign currency translation adjustments, net of zero tax	(13,960)	(10,603)	(43,457)	(21,575)
Unrealized gain (loss) on derivative instruments and other, net of zero tax	1,097	(3,088)	516	3,015
Comprehensive income (loss)	132,294	33,657	279,678	307,807
Guarantor Subsidiaries
Net income (loss)	(30,834)	(103,398)	(75,251)	106,733
Other comprehensive income (loss):
Foreign currency translation adjustments, net of zero tax	(3,369)	(6,075)	(15,794)	1,271
Unrealized gain (loss) on derivative instruments and other, net of zero tax	(4)	1,822	3,944	(1,192)
Comprehensive income (loss)	(34,207)	(107,651)	(87,101)	106,812
Non-Guarantor Subsidiaries
Net income (loss)	(31,871)	18,679	(59,529)	(235,403)
Other comprehensive income (loss):
Foreign currency translation adjustments, net of zero tax	(28,137)	(30,706)	(94,550)	(23,143)
Unrealized gain (loss) on derivative instruments and other, net of zero tax	1,097	(3,088)	515	3,015
Comprehensive income (loss)	(58,911)	(15,115)	(153,564)	(255,531)
Eliminations
Net income (loss)	62,705	84,719	134,780	128,670
Other comprehensive income (loss):
Foreign currency translation adjustments, net of zero tax	31,506	36,781	110,344	21,872
Unrealized gain (loss) on derivative instruments and other, net of zero tax	(1,093)	1,266	(4,459)	(1,823)
Comprehensive income (loss)	$ 93,118	$ 122,766	$ 240,665	$ 148,719