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STOCKHOLDERS' EQUITY STOCKHOLDERS' EQUITY - Stock Repurchases (Details) - USD ($) shares in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Equity [Abstract] |  |  |
Repurchases unsettled (in shares) | (333) | (1,001) | (99)
Stock Repurchase Program, Remaining Authorized Repurchase Amount [Roll Forward] |  |  |
Authorization remaining, beginning of period | $ 6,620,000 | $ 34,892,000 | $ 39,385,000
Authorizations | 60,000,000 | 27,003,000 | 0
Repurchases | (21,136,000) | (55,275,000) | (4,493,000)
Authorization remaining, end of period | 45,484,000 | $ 6,620,000 | $ 34,892,000
Stock Repurchase Program, Authorized Amount | $ 60,000,000 |  |

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- Definition Stock Repurchase Program, Amount Authorized During Period + References No definition available. + Details
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- Definition The value of shares repurchased that did not settle with transfer agent as of the reporting date. + References No definition available. + Details
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- Definition Stock Repurchase Program, Remaining Authorized Repurchase Amount [Roll Forward] + References No definition available. + Details
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- Definition The number of shares repurchased that did not settle with transfer agent as of the reporting date. + References No definition available. + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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