Pension Plans (Tables)

6 Months Ended

Jun. 30, 2016

Pension and Other Postretirement Benefit Expense [Abstract]

Components Of Pension Expense

The following table summarizes the components of net periodic pension cost charged to operations for the three and six months ended June 30, 2016 and 2015 (in thousands):

	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2016			2015			2016			2015
Components of net periodic pension cost:
Interest cost	$	2,257		$	3,468		$	4,516		$	6,944
Expected return on plan assets (1)	(1,881		)	(2,691		)	(3,797		)	(5,381		)
Actuarial losses	539			1,907			1,117			3,819
Net periodic pension cost	$	915		$	2,684		$	1,836		$	5,382

(1) In connection with a lump sum buyout completed in the fourth quarter of 2015, pension assets decreased by approximately $110.7 million.