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STOCKHOLDERS' EQUITY Cash Dividends (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Apr. 30, 2020 quarters $ / shares | Oct. 31, 2019 quarters $ / shares | Jan. 31, 2019 Quarter $ / shares | Mar. 31, 2020 USD ($) $ / shares | Dec. 31, 2019 $ / shares | Sep. 30, 2019 $ / shares | Jun. 30, 2019 $ / shares | Mar. 31, 2019 USD ($) $ / shares
Dividends Declared and Paid [Line Items] |  |  |  |  |  |  |  |
Payments of dividends to stockholders | $ |  |  |  | $ 5,644 |  |  |  | $ 4,937
Common Stock, Dividends, Per Share, Cash Paid |  | $ 0.19 | $ 0.17 | $ 0.19 |  |  |  | $ 0.17
Common Stock, Dividends, Number of Quarterly Distributions Declared |  | 5 | 4 |  |  |  |  |
Additional Common Stock, Dividends, Per Share, Declared |  | $ 0.02 |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared |  |  |  |  | $ 0.19 | $ 0.17 | $ 0.17 |
Subsequent Event [Member] |  |  |  |  |  |  |  |
Dividends Declared and Paid [Line Items] |  |  |  |  |  |  |  |
Common Stock, Dividends, Number of Quarterly Distributions Declared | quarters | 3 |  |  |  |  |  |  |
Common Stock, Dividends Per Share Declared, Current Fiscal Year, Second Quarter | $ 0.21 |  |  |  |  |  |  |
Common Stock, Dividends Per Share Declared, Current Fiscal Year, Third Quarter | 0.21 |  |  |  |  |  |  |
Common Stock, Dividends Per Share Declared, Current Fiscal Year, Fourth Quarter | $ 0.21 |  |  |  |  |  |  |

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