Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2016

Significant Accounting Policies Tables [Abstract]

Schedule Of Earnings Per Share

		Three Months				Nine Months
		Ended September 30,				Ended September 30,
		2016		2015		2016		2015
		(Share amounts in 000's)
Net income (loss)	$	98,407	$	(3,096)	$	90,577	$	(2,581)
Weighted average common shares outstanding - basic		153,392		153,250		153,368		153,171
Effect of dilutive instruments		729		-		709		-
Weighted average common shares outstanding - diluted		154,121		153,250		154,077		153,171
Net income (loss) per common share - basic	$	0.64	$	(0.02)	$	0.59	$	(0.02)
Net income (loss) per common share - diluted	$	0.64	$	(0.02)	$	0.59	$	(0.02)
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)(2)		503		-		1,450		-
(1) Due to the net loss for the nine months ended September 30, 2015, 1.7 million shares for options and restricted stock units were anti-dilutive and excluded from the computation of net loss per share.
(2) Due to the net loss for the three months ended September 30, 2015, 1.6 million shares for options and restricted stock units were anti-dilutive and excluded from the computation of net loss per share.