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EQUITY - Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
EQUITY
Net income for the year	$ 243,887	$ 158,824
Weighted average number of common shares outstanding - basic	230,252,000	222,737,000
Add: Dilutive impact of common shares related to the RSU plan, PSU plan and LTIP	694,000	639,000
Add: Dilutive impact of employee stock options	1,515,000	2,378,000
Weighted average number of common shares outstanding - diluted	232,461,000	225,754,000
Net income per share - basic	$ 1.06	$ 0.71
Net income per share - diluted	$ 1.05	$ 0.70
Anti-dilutive employee stock options	52,000	20,000

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- Definition

The number of dilutive potential ordinary shares under the RSU plan, PSU plan and LTIP.

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Represents the information pertaining to antidilutive securities excluded from computation of earnings per share, shares.

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The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

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The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options.

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The total of income less expenses, excluding the components of other comprehensive income. [Refer: Other comprehensive income]

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