Goodwill (Text Block)

9 Months Ended

Sep. 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	59,137			—		—			59,137
Effect of change in exchange rates	2,900			29,390		6,811			39,101
Balances at September 30, 2017
Goodwill before impairment	495,848			349,303		374,151			1,219,302
Accumulated impairment losses	(382,438		)	—		(286,132		)	(668,570		)
Goodwill, net	$	113,410		$	349,303	$	88,019		$	550,732