INCOME TAXES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012
Income Tax Disclosure [Abstract]
Total accrued income tax related interest and penalties	$ 224		$ 224		$ 239
Total amount of unrecognized tax benefits	7,209		7,209		7,199
Amount of unrecognized tax benefits that would impact the effective tax rate, if recognized	5,425		5,425		5,415
Effective income tax rate (as a percent)	36.00%	36.10%	37.00%	35.70%
Income Tax Reconciliation, Nondeductible Expense			2,219
Income Taxes Receivable, Current	$ 25,158		$ 25,158
Number of states which notified the entity of an income tax examination			2