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STOCK-BASED COMPENSATION PLANS - Employee Stock Ownership Plan (Details) - ESOP $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) h / yr | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Employee Stock Ownership Plan |  |  |
Minimum hours of work per year for employees to be covered under Employee Stock Ownership Plan (ESOP) | h / yr | 1,000 |  |
Annual contribution by employer as a percentage of pretax income before the contribution | 5.00% | 5.00% | 5.00%
Company contributions | $ | $ 1,090 | $ 849 | $ 674

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- References No definition available. + Details
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- Definition Represents the annual contribution by employer as a percentage of pretax income before the contribution towards Employee Stock Ownership Plan (ESOP). + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Represents the minimum hours per year for which an employee is required to perform services to be covered under Employee Stock Ownership Plan (ESOP). + References No definition available. + Details
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Period Type: | duration

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- Definition The amount of plan compensation cost recognized during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Details
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