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EARNINGS PER COMMON SHARE - ADDITIONAL INFORMATION (Details) - USD ($) |  |  | 2 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
May 12, 2020 | Mar. 09, 2020 | May 12, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Earnings Per Share [Line Items] |  |  |  |  |  |  |
Potentially dilutive securities excluded from computation of earnings per share, amount (in shares) |  |  |  |  |  | 900,000 |
Antidilutive common stock options not included in the computation of diluted earnings per common share (in shares) |  |  |  | 3,500,000 | 2,500,000 |  |
Accelerated share repurchases, authorized amount |  | $ 140,000,000.0 |  |  |  |  |
Accelerated share repurchases, settlement (payment) or receipt |  | $ 140,000,000.0 |  |  |  |  |
Stock repurchased during period, shares (in shares) | 1,000,000.0 | 2,700,000 |  |  |  |  |
Accelerated share repurchases, final price paid per share (in usd per share) |  | $ 42.12 |  |  |  |  |
Arithmetic Average |  |  |  |  |  |  |
Earnings Per Share [Line Items] |  |  |  |  |  |  |
Accelerated share repurchases, final price paid per share (in usd per share) |  |  | $ 38.88 |  |  |  |
Common Stock |  |  |  |  |  |  |
Earnings Per Share [Line Items] |  |  |  |  |  |  |
Antidilutive common stock options not included in the computation of diluted earnings per common share (in shares) |  |  |  |  |  |  | 3,400,000
Stock Options And Restricted Stock Units |  |  |  |  |  |  |
Earnings Per Share [Line Items] |  |  |  |  |  |  |
Antidilutive common stock options not included in the computation of diluted earnings per common share (in shares) |  |  |  |  |  | 3,200,000 |

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- Definition Final price paid per share for the purchase of the targeted number of shares, determined by an average market price over a fixed period of time. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
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- Definition Amount of cash receipt from (payment to) bank; or stock received from (issuance to) bank in the settlement of the accelerated share repurchase agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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