Goodwill (Text Block)

6 Months Ended

Jun. 30, 2017

Goodwill Excluding Non Goodwill Intangibles [Abstract]

Goodwill Disclosure [Text Block]

Goodwill

The following table reflects goodwill allocated to each reporting unit:

	Electricity			Gas		Water			Total Company
	(in thousands)
Balances at January 1, 2017
Goodwill before impairment	$	400,299		$	319,913	$	334,505		$	1,054,717
Accumulated impairment losses	(348,926		)	—		(253,297		)	(602,223		)
Goodwill, net	51,373			319,913		81,208			452,494
Goodwill acquired	60,286			—		—			60,286
Effect of change in exchange rates	2,065			21,158		5,068			28,291
Balances at June 30, 2017
Goodwill before impairment	486,834			341,071		363,185			1,191,090
Accumulated impairment losses	(373,110		)	—		(276,909		)	(650,019		)
Goodwill, net	$	113,724		$	341,071	$	86,276		$	541,071