Retirement and Postretirement Benefits Other than Pension Plans (Tables)

6 Months Ended

Jun. 30, 2013

Pension Plans, Defined Benefit [Member]

Net Periodic Pension and Postretirement Benefit Expense

Net periodic pension expense reflected in the accompanying condensed consolidated statements of operations included the following components for the respective periods (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Interest cost	$	947		$	1,087		$	1,940		$	2,174
Expected return on plan assets		(1,283	)		(1,173	)		(2,574	)		(2,346	)
Recognized net actuarial loss		262			1,170			580			2,340
Net settlement loss		1,290			—			1,290			—
Total net periodic pension expense	$	1,216		$	1,084		$	1,236		$	2,168

Other Postretirement Benefit Plans, Defined Benefit [Member]

Net Periodic Pension and Postretirement Benefit Expense

Net postretirement benefit expense reflected in the accompanying condensed consolidated statements of operations included the following components for the respective periods (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Service cost	$	—		$	15		$	—		$	29
Interest cost		33			253			97			507
Amortization of net actuarial loss		142			176			238			352
Amortization of prior service credit		(380	)		(131	)		(665	)		(261	)
Total net postretirement benefit expense	$	(205	)	$	313		$	(330	)	$	627