Net Loss Per Share (Reconciliation Of The Numerator And Denominator Of Basic And Diluted Net Loss Per Share) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Loss from continuing operations	$ (98,052)		$ (52,479)		$ (110,664)	$ (550,217)
Loss from discontinued operations, net of tax	(7,953)		(8,388)		(13,914)	(16,139)
NET LOSS	$ (106,005)	$ (18,573)	$ (60,867)	$ (505,489)	$ (124,578)	$ (566,356)
Denominator:
For basic per share data—weighted average shares (in shares)	226,221		223,834		225,408	223,677
Dilutive effect of ordinary share equivalents (in shares)	0		0		0	0
For diluted per share data—weighted average shares (in shares)	226,221		223,834		225,408	223,677

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Amount after tax of income (loss) from continuing operations attributable to the parent.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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