EMPLOYEE BENEFIT PLANS

9 Months Ended

Sep. 30, 2014

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

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANS

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

	Three Months Ended   September 30,						Nine Months Ended   September 30,
Pension Benefits	2014			2013			2014			2013
Components of net periodic benefit cost:
Service cost	$	5,134		$	3,699		$	14,276		$	11,096
Interest cost	616			248			1,787			744
Expected return on plan assets	(546		)	(138		)	(1,609		)	(414		)
Amortization of prior service costs	13			3			26			9
Amortization of loss	277			105			757			315
Net periodic benefit cost	$	5,494		$	3,917		$	15,237		$	11,750

	Three Months Ended   September 30,				Nine Months Ended   September 30,
Post Retirement Medical Plan	2014		2013		2014			2013
Components of net periodic benefit cost:
Service cost	$	269	$	181	$	747		$	544
Interest cost	125		84		353			251
Amortization of prior service costs	52		—		107			—
Amortization of gain	—		—		(4		)	—
Net periodic benefit cost	$	446	$	265	$	1,203		$	795