NET EARNINGS PER SHARE Additional Information (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2017 $ / shares shares	Jun. 30, 2016 $ / shares	Jun. 30, 2017 $ / shares shares	Jun. 30, 2016 $ / shares	Jul. 01, 2016	Jun. 24, 2013 shares
Net earnings per share, basic and diluted \| $ / shares	$ 0.03	$ 0.21	$ 0.24	$ 0.33
Preference shares conversion ratio					1.6929
6.375 percent Mandatory Convertible Preference Shares, Series A
Preference shares, outstanding \| shares	0		0			13,800,000

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or 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.

No definition available.

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