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DEBT AND CREDIT FACILITIES DEBT AND CREDIT FACILITIES (Debt Redemption) (Details) - $400 Million 4.875% 2024 Senior Notes [Member] | 12 Months Ended
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Dec. 31, 2018
Prior to January 15, 2021 - upon equity issuance |
Debt Instrument, Redemption [Line Items] |
Redemption Price | 104.875%
Restricted Amount (percent of original aggregate principal) | 35.00%
Prior to January 15, 2021, including premium |
Debt Instrument, Redemption [Line Items] |
Redemption Price | 100.00%
Prior to January 15, 2021 |
Debt Instrument, Redemption [Line Items] |
Redemption Price | 103.00%
Restricted Amount (percent of original aggregate principal) | 10.00%
Beginning on January 15, 2021 |
Debt Instrument, Redemption [Line Items] |
Redemption Price | 102.438%
Beginning on January 15, 2022 |
Debt Instrument, Redemption [Line Items] |
Redemption Price | 101.219%
Beginning on January 15, 2023 |
Debt Instrument, Redemption [Line Items] |
Redemption Price | 100.00%

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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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