Restructuring (Tables)

6 Months Ended

Jun. 30, 2018

Restructuring Project [Line Items]

Schedule of Restructuring Reserve by Type of Cost

The following table summarizes the activity within the restructuring related balance sheet accounts for the 2018 and 2016 Projects during the six months ended June 30, 2018:

	Accrued Employee Severance			Asset Impairments & Net Loss on Sale or Disposal			Other Accrued Costs			Total
	(in thousands)
Beginning balance, January 1, 2018	$	37,654		$	—		$	2,471		$	40,125
Costs charged to expense	79,660			624			1,958			82,242
Cash payments	(16,324		)	—			(1,996		)	(18,320		)
Net assets disposed and impaired	—			(624		)	—			(624		)
Effect of change in exchange rates	(5,049		)	—			(3		)	(5,052		)
Ending balance, June 30, 2018	$	95,941		$	—		$	2,430		$	98,371

2018 Projects [Member]

Restructuring Project [Line Items]

Restructuring and Related Costs

The total expected restructuring costs, the restructuring costs recognized, and the remaining expected restructuring costs related to the 2018 Projects are as follows:

	Total Expected Costs at June 30, 2018		Costs Recognized During the Six Months Ended June 30, 2018		Expected Remaining Costs to be Recognized at June 30, 2018
	(in thousands)
Employee severance costs	$	81,669	$	81,669	$	—
Other restructuring costs	18,418		418		18,000
Total	$	100,087	$	82,087	$	18,000
Segments:
Electricity	$	20,746	$	18,746	$	2,000
Gas	50,558		41,558		9,000
Water	22,692		15,692		7,000
Corporate unallocated	6,091		6,091		—
Total	$	100,087	$	82,087	$	18,000

2016 Projects [Member]

Restructuring Project [Line Items]

Restructuring and Related Costs

The total expected restructuring costs, the restructuring costs recognized, and the remaining expected restructuring costs related to the 2016 Projects are as follows:

	Total Expected Costs at June 30, 2018		Costs Recognized in Prior Periods		Costs Recognized During the Six Months Ended June 30, 2018			Expected Remaining Costs to be Recognized at June 30, 2018
	(in thousands)
Employee severance costs	$	37,846	$	39,855	$	(2,009	)	$	—
Asset impairments & net loss on sale or disposal	5,546		4,922		624			—
Other restructuring costs	15,975		9,435		1,540			5,000
Total	$	59,367	$	54,212	$	155		$	5,000
Segments:
Electricity	$	11,234	$	9,025	$	709		$	1,500
Gas	31,084		29,181		(97		)	2,000
Water	14,562		13,761		(699		)	1,500
Corporate unallocated	2,487		2,245		242			—
Total	$	59,367	$	54,212	$	155		$	5,000