Restructuring (Tables)

9 Months Ended

Sep. 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 nine months ended September 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	4,832			(720		)	3,305			7,417
Cash payments	(9,158		)	—			(3,198		)	(12,356		)
Non-cash items	—			720			—			720
Effect of change in exchange rates	4,144			—			5			4,149
Ending balance, September 30, 2017	$	45,186		$	—		$	2,714		$	47,900

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 nine months ended September 30, 2017, and the remaining expected restructuring costs as of September 30, 2017 related to the 2016 Projects are as follows:

	Total Expected Costs at September 30, 2017		Costs Recognized in Prior Periods		Costs Recognized During the Nine Months Ended September 30, 2017			Expected Remaining Costs to be Recognized at September 30, 2017
	(in thousands)
Employee severance costs	$	44,518	$	39,686	$	4,832		$	—
Asset impairments & net loss (gain) on sale or disposal	6,499		7,219		(720		)	—
Other restructuring costs	12,194		889		3,305			8,000
Total	$	63,211	$	47,794	$	7,417		$	8,000
Segments:
Electricity	$	11,884	$	8,827	$	1,557		$	1,500
Gas	32,185		23,968		4,717			3,500
Water	16,007		13,061		446			2,500
Corporate unallocated	3,135		1,938		697			500
Total	$	63,211	$	47,794	$	7,417		$	8,000