Property, Plant and Equipment

6 Months Ended

Jun. 30, 2016

Public Utilities, Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Text Block]

9. PROPERTY, PLANT, AND EQUIPMENT

The following table sets forth the major classifications of our property, plant, and equipment and accumulated depreciation:

	June 30,				December 31,
In thousands	2016		2015		2015
Utility plant in service	$	2,783,883	$	2,701,010	$	2,745,485
Utility construction work in progress	57,068		38,024		39,288
Less: Accumulated depreciation	890,028		857,373		867,377
Utility plant, net	1,950,923		1,881,661		1,917,396
Non-utility plant in service	297,809		296,046		296,839
Non-utility construction work in progress	7,871		7,591		7,768
Less: Accumulated depreciation	42,151		36,349		39,340
Non-utility plant, net	263,529		267,288		265,267
Total property, plant, and equipment	$	2,214,452	$	2,148,949	$	2,182,663
Capital expenditures in accrued liabilities	$	11,345	$	6,081	$	8,985