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Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Numerator:
Net Income (Loss)	$ 3,006	$ 1,878
Denominator:
Weighted-average common shares outstanding, Basic (in shares)	111,464	109,733
Effect of potential dilutive common shares	3,861	2,519
Denominator:
Weighted-average common shares outstanding, Diluted (in shares)	115,325	112,252
Earnings Per Share, Basic	$ 0.03	$ 0.02
Earnings Per Share, Diluted	$ 0.03	$ 0.02

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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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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