Segment Information (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting Information [Line Items]

Revenues Gross Profit And Operating Income By Segment [Table Text Block]

Revenues, gross profit, and operating income associated with our segments were as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
	(in thousands)
Revenues
Electricity	$	242,667		$	206,810		$	692,785		$	602,999
Gas	144,185			136,726			433,707			401,099
Water	120,007			125,992			390,981			382,987
Total Company	$	506,859		$	469,528		$	1,517,473		$	1,387,085
Gross profit
Electricity	$	75,362		$	56,385		$	210,840		$	163,330
Gas	56,096			46,790			158,156			134,854
Water	39,291			44,115			134,661			106,082
Total Company	$	170,749		$	147,290		$	503,657		$	404,266
Operating income (loss)
Electricity	$	20,452		$	9,819		$	51,092		$	14,958
Gas	7,136			15,836			48,811			44,986
Water	(3,546		)	14,265			28,707			11,415
Corporate unallocated	(17,632		)	(12,980		)	(63,153		)	(34,891		)
Total Company	6,410			26,940			65,457			36,468
Total other income (expense)	(1,882		)	(3,738		)	(8,824		)	(11,899		)
Income before income taxes	$	4,528		$	23,202		$	56,633		$	24,569

Revenues By Region [Table Text Block]

Revenues by region were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
	(in thousands)
United States and Canada	$	297,116	$	256,962	$	837,468	$	737,112
Europe, Middle East, and Africa	161,959		167,577		545,517		514,054
Other(1)	47,784		44,989		134,488		135,919
Total revenues	$	506,859	$	469,528	$	1,517,473	$	1,387,085

⁽¹⁾  The Other region includes our operations in Latin America and Asia Pacific.

Depreciation And Amortization Expense Associated With Segments [Table Text Block]

Depreciation and amortization expense associated with our segments was as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2016			2015		2016		2015
	(in thousands)
Electricity	$	6,682		$	8,878	$	21,715	$	27,427
Gas	5,595			4,743		15,484		15,316
Water	5,022			5,280		14,040		14,806
Corporate unallocated	(1,217		)	97		324		241
Total Company	$	16,082		$	18,998	$	51,563	$	57,790