Postretirement Plans (Tables)

9 Months Ended

Sep. 30, 2016

Pension Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Net Periodic Benefit Cost

The components of net periodic benefit cost were as follows:

	Nine months ended September 30						Three months ended September 30
Pension Plans	2016			2015			2016			2015
Service cost		$488			$1,325			$162			$441
Interest cost	2,287			2,242			761			748
Expected return on plan assets	(2,998		)	(3,024		)	(1,000		)	(1,008		)
Amortization of prior service costs	29			147			9			49
Recognized net actuarial loss	592			1,184			198			392
Settlement/curtailment/other losses	39			194			6			83
Net periodic benefit cost		$437			$2,068			$136			$705
Net periodic benefit cost included in Earnings from operations		$1,545			$1,837			$453			$529

Other Postretirement Benefit Plan, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Net Periodic Benefit Cost

	Nine months ended September 30						Three months ended September 30
Other Postretirement Benefits	2016			2015			2016			2015
Service cost		$96			$105			$32			$35
Interest cost	196			186			66			62
Expected return on plan assets	(6		)	(6		)	(2		)	(2		)
Amortization of prior service credits	(94		)	(102		)	(32		)	(34		)
Recognized net actuarial loss	17			23			5			8
Settlement and curtailment loss				9						4
Net periodic benefit cost		$209			$215			$69			$73
Net periodic benefit cost included in Earnings from operations		$213			$226			$63			$65