Defined Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Net Periodic Cost (Benefit)

The components of the combined net periodic expense (benefit) for our defined benefit pension plans were as follows:

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2015			2014			2015			2014
Expected return on plan assets, net of expenses	$	(2,983	)	$	(3,128	)	$	(5,966	)	$	(6,257	)
Interest cost on projected benefit obligation	2,053			2,000			4,105			4,001
Net amortization and deferral	1,749			671			3,498			1,343
Net periodic expense (benefit)	$	819		$	(457	)	$	1,637		$	(913	)