Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2013

Significant Accounting Policies Tables [Abstract]

Schedule Of Earnings Per Share

		Three Months Ended
		March 31,		March 31,
		2013		2012
		(Share amounts in 000's)
Net income	$	16,433	$	84,262
Weighted average common shares outstanding - basic		152,947		152,601
Effect of dilutive instruments		1,523		917
Weighted average common shares outstanding - fully diluted		154,470		153,518
Net income per common share - basic	$	0.11	$	0.55
Net income per common share - fully diluted	$	0.11	$	0.55
Number of shares not included in dilutive earnings per share that would have been anti-dilutive because the exercise price was greater than the average market price of the common
shares		1,331		1,864