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Property, Plant and Equipment

6 Months Ended

Jun. 30, 2011

Property, Plant and Equipment [Abstract]

3. Property, Plant and Equipment

Property, plant and equipment consisted of the following:

	June 30, 2011		December 31, 2010
Plant in service	$	496,103	$	466,658
Plant under construction		22,526		25,515
		518,629		492,173
Less accumulated amortization and depreciation		229,292		212,122
Net property, plant and equipment	$	289,337	$	280,051

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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