Defined Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Net Periodic Cost (Benefit)

	Three Months Ended   March 31,
	2017			2016
Expected return on plan assets, net of expenses	$	(2,779	)	$	(2,890	)
Interest cost on projected benefit obligation	1,547			1,749
Net amortization and deferral	1,357			1,553
Net periodic expense (benefit)	$	125		$	412