Postretirement Plans (Tables)

6 Months Ended

Jun. 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:

	Six months ended June 30						Three months ended June 30
Pension Plans	2016			2015			2016			2015
Service cost		$326			$884			$163			$442
Interest cost	1,526			1,494			762			747
Expected return on plan assets	(1,998		)	(2,016		)	(999		)	(1,008		)
Amortization of prior service costs	20			98			10			49
Recognized net actuarial loss	394			792			197			396
Settlement/curtailment/other losses	33			111			18			73
Net periodic benefit cost		$301			$1,363			$151			$699
Net periodic benefit cost included in Earnings/(loss) from operations		$1,092			$1,308			$463			$523

Other Postretirement Benefit Plan, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Net Periodic Benefit Cost

	Six months ended June 30						Three months ended June 30
Other Postretirement Benefits	2016			2015			2016			2015
Service cost		$64			$70			$32			$35
Interest cost	130			124			65			62
Expected return on plan assets	(4		)	(4		)	(2		)	(2		)
Amortization of prior service credits	(62		)	(68		)	(31		)	(34		)
Recognized net actuarial loss	12			15			6			11
Settlement and curtailment loss				5						3
Net periodic benefit cost		$140			$142			$70			$75
Net periodic benefit cost included in Earnings/(loss) from operations		$150			$161			$62			$69