EMPLOYEE BENEFIT PLANS (Tables)

6 Months Ended

Jun. 30, 2013

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

Schedule of net periodic benefit cost

The components of net periodic benefit cost related to the Company’s defined benefit plans consisted of the following:

	Three Months Ended June 30,						Six Months Ended June 30,
Pension Benefits	2013			2012			2013			2012
Components of net period benefit cost:
Service cost	$	3,699		$	3,548		$	7,397		$	5,718
Interest cost	248			215			496			251
Expected return on plan assets	(138		)	(152		)	(276		)	(162		)
Amortization of prior service costs	3			2			5			5
Amortization of loss	105			1			210			15
Net periodic benefit cost	$	3,917		$	3,614		$	7,832		$	5,827

	Three Months Ended June 30,				Six Months Ended June 30,
Post Retirement Medical Plan	2013		2012		2013		2012
Components of net period benefit cost:
Service cost	$	181	$	135	$	363	$	270
Interest cost	84		95		167		190
Net periodic benefit cost	$	265	$	230	$	530	$	460