Retirement benefits (Tables)

3 Months Ended

Mar. 31, 2013

Retirement benefits

Schedule of components of net periodic benefit cost for consolidated HEI

	Pension benefits						Other benefits
Three months ended March 31	2013			2012			2013			2012
(in thousands)
Service cost	$	14,089		$	10,191		$	1,049		$	1,096
Interest cost	16,106			16,771			1,931			2,281
Expected return on plan assets	(18,085		)	(17,856		)	(2,562		)	(2,621		)
Amortization of prior service gain	(24		)	(81		)	(448		)	(448		)
Amortization of net actuarial loss	9,819			6,423			521			453
Net periodic benefit cost	21,905			15,448			491			761
Impact of PUC D&Os	(7,436		)	(3,857		)	(397		)	(680		)
Net periodic benefit cost (adjusted for impact of PUC D&Os)	$	14,469		$	11,591		$	94		$	81