INCOME TAXES (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014
INCOME TAXES [Abstract]
Total unrecognized tax benefit including interest and penalties	$ 33.4
Accrued interest and penalties	1
Federal net operating loss	274.5
Tax credit carryforwards	142.1
Federal net operating loss carryforwards attributable to excess tax deductions from stock option exercises	33.6
Acquired net operating losses included in carryforwards	15.6
Acquired credits included in carryforwards	$ 10.8