EMPLOYEE BENEFIT PLANS (Tables)

3 Months Ended

Jun. 30, 2014

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of components of net periodic pension cost

	Three Months Ended   June 30,
	2014			2013
Service cost for benefits earned during the period	$	2,246		$	2,051
Interest cost on pension benefit obligation	6,929			6,538
Expected return on assets	(8,223		)	(7,102		)
Amortization of unrecognized losses	1,768			1,877
Net periodic pension cost	$	2,720		$	3,364

Schedule of Black Scholes Assumptions

Risk free interest rate	1.65	%
Expected life (years)	6
Volatility	30.1	%
Dividend yield	2.06	%
Weighted average exercise price of options granted	$74.52 per option
Weighted average grant-date fair value of options granted	$17.21 per option