Restructuring (Tables)

6 Months Ended

Jun. 30, 2017

Restructuring Project [Line Items]

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

The following table summarizes the activity within the restructuring related balance sheet accounts for the 2016 and 2014 Projects during the six months ended June 30, 2017:

	Accrued Employee Severance			Asset Impairments & Net Loss on Sale or Disposal			Other Accrued Costs			Total
	(in thousands)
Beginning balance, January 1, 2017	$	45,368		$	—		$	2,602		$	47,970
Costs charged to expense	5,507			80			2,508			8,095
Cash payments	(7,275		)	—			(2,330		)	(9,605		)
Non-cash items	—			(80		)	—			(80		)
Effect of change in exchange rates	2,963			—			4			2,967
Ending balance, June 30, 2017	$	46,563		$	—		$	2,784		$	49,347

2016 Projects [Member]

Restructuring Project [Line Items]

Restructuring and Related Costs [Table Text Block]

The total expected restructuring costs, the restructuring costs recognized during the six months ended June 30, 2017, and the remaining expected restructuring costs as of June 30, 2017 related to the 2016 Projects are as follows:

	Total Expected Costs at June 30, 2017		Costs Recognized in Prior Periods		Costs Recognized During the Six Months Ended June 30, 2017		Expected Remaining Costs to be Recognized at June 30, 2017
	(in thousands)
Employee severance costs	$	45,193	$	39,686	$	5,507	$	—
Asset impairments & net loss on sale or disposal	7,299		7,219		80		—
Other restructuring costs	15,397		889		2,508		12,000
Total	$	67,889	$	47,794	$	8,095	$	12,000
Segments:
Electricity	$	11,157	$	8,827	$	330	$	2,000
Gas	32,891		23,968		5,423		3,500
Water	21,074		13,061		2,013		6,000
Corporate unallocated	2,767		1,938		329		500
Total	$	67,889	$	47,794	$	8,095	$	12,000