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SHARE-BASED PAYMENTS - Schedule of Share-based Compensation, Outstanding and Exercisable Options (Details) - 12 months ended Dec. 31, 2017 | USD ($) $ / shares shares | CAD / shares
--- | --- | ---
Canada, Dollars |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, quantity (in shares) | shares | 393,100 |
Options outstanding, intrinsic value | $ | $ 0.00 |
Options exercisable, quantity (in shares) | shares | 393,100 |
Exercisable options, intrinsic value | $ | $ 0.00 |
Canada, Dollars | $0.00 to $4.99 | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | CAD / shares |  | CAD 0.00
Options exercisable, weighted average price (per share) | CAD / shares |  | 0.00
Canada, Dollars | $0.00 to $4.99 | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | CAD / shares |  | 4.99
Options exercisable, weighted average price (per share) | CAD / shares |  | 4.99
Canada, Dollars | $5.00 to $9.99 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, quantity (in shares) | shares | 393,100 |
Options outstanding, weighted average price (per share) | CAD / shares |  | 8.26
Options outstanding, weighted average remaining contractual life | 1 year 2 months 2 days |
Options outstanding, intrinsic value | $ | $ 0.00 |
Options exercisable, quantity (in shares) | shares | 393,100 |
Options exercisable, weighted average price (per share) | CAD / shares |  | 8.26
Options exercisable, weighted average remaining contractual life | 1 year 2 months 2 days |
Exercisable options, intrinsic value | $ | $ 0.00 |
Canada, Dollars | $5.00 to $9.99 | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | CAD / shares |  | 5.00
Options exercisable, weighted average price (per share) | CAD / shares |  | 5.00
Canada, Dollars | $5.00 to $9.99 | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | CAD / shares |  | 9.99
Options exercisable, weighted average price (per share) | CAD / shares |  | 9.99
Canada, Dollars | $10.00 to $14.99 | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | CAD / shares |  | 10.00
Options exercisable, weighted average price (per share) | CAD / shares |  | 10.00
Canada, Dollars | $10.00 to $14.99 | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | CAD / shares |  | 14.99
Options exercisable, weighted average price (per share) | CAD / shares |  | 14.99
Canada, Dollars | $15.00 to $19.99 | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | CAD / shares |  | 15.00
Options exercisable, weighted average price (per share) | CAD / shares |  | 15.00
Canada, Dollars | $15.00 to $19.99 | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | CAD / shares |  | 19.99
Options exercisable, weighted average price (per share) | CAD / shares |  | CAD 19.99
United States of America, Dollars |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, quantity (in shares) | shares | 1,635,747 |
Options outstanding, intrinsic value | $ | $ 0.00 |
Options exercisable, quantity (in shares) | shares | 1,270,567 |
Exercisable options, intrinsic value | $ | $ 0.00 |
United States of America, Dollars | $0.00 to $4.99 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, quantity (in shares) | shares | 1,276,456,000 |
Options outstanding, weighted average price (per share) | $ 2,970.00 |
Options outstanding, weighted average remaining contractual life | 1639 days |
Options outstanding, intrinsic value | $ | $ 0.00 |
Options exercisable, quantity (in shares) | shares | 911,276,000 |
Options exercisable, weighted average price (per share) | $ 3,240.00 |
Options exercisable, weighted average remaining contractual life | 1727 days |
Exercisable options, intrinsic value | $ | $ 0.00 |
United States of America, Dollars | $0.00 to $4.99 | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | $ 0.00 |
Options exercisable, weighted average price (per share) | 0.00 |
United States of America, Dollars | $0.00 to $4.99 | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | 4.99 |
Options exercisable, weighted average price (per share) | $ 4.99 |
United States of America, Dollars | $5.00 to $9.99 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, quantity (in shares) | shares | 255,762,000 |
Options outstanding, weighted average price (per share) | $ 6,000.00 |
Options outstanding, weighted average remaining contractual life | 1497 days |
Options outstanding, intrinsic value | $ | $ 0.00 |
Options exercisable, quantity (in shares) | shares | 255,762,000 |
Options exercisable, weighted average price (per share) | $ 6,000.00 |
Options exercisable, weighted average remaining contractual life | 1497 days |
Exercisable options, intrinsic value | $ | $ 0.00 |
United States of America, Dollars | $5.00 to $9.99 | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | $ 5.00 |
Options exercisable, weighted average price (per share) | 5.00 |
United States of America, Dollars | $5.00 to $9.99 | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | 9.99 |
Options exercisable, weighted average price (per share) | $ 9.99 |
United States of America, Dollars | $10.00 to $14.99 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, quantity (in shares) | shares | 90,779,000 |
Options outstanding, weighted average price (per share) | $ 10,690.00 |
Options outstanding, weighted average remaining contractual life | 183 days |
Options outstanding, intrinsic value | $ | $ 0.00 |
Options exercisable, quantity (in shares) | shares | 90,779,000 |
Options exercisable, weighted average price (per share) | $ 10,690.00 |
Options exercisable, weighted average remaining contractual life | 183 days |
Exercisable options, intrinsic value | $ | $ 0.00 |
United States of America, Dollars | $10.00 to $14.99 | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | $ 10.00 |
Options exercisable, weighted average price (per share) | 10.00 |
United States of America, Dollars | $10.00 to $14.99 | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | 14.99 |
Options exercisable, weighted average price (per share) | $ 14.99 |
United States of America, Dollars | $15.00 to $19.99 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, quantity (in shares) | shares | 12,750,000 |
Options outstanding, weighted average price (per share) | $ 15,610.00 |
Options outstanding, weighted average remaining contractual life | 1105 days |
Options outstanding, intrinsic value | $ | $ 0.00 |
Options exercisable, quantity (in shares) | shares | 12,750,000 |
Options exercisable, weighted average price (per share) | $ 15,610.00 |
Options exercisable, weighted average remaining contractual life | 1105 days |
Exercisable options, intrinsic value | $ | $ 0.00 |
United States of America, Dollars | $15.00 to $19.99 | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | $ 15.00 |
Options exercisable, weighted average price (per share) | 15.00 |
United States of America, Dollars | $15.00 to $19.99 | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, weighted average price (per share) | 19.99 |
Options exercisable, weighted average price (per share) | $ 19.99 |

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