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SHARE-BASED COMPENSATION PLANS - Share Purchase and Related Weighted Average, ESPP (Details) - Employee Stock Purchase Plan - $ / shares shares in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares purchased (in shares) | 320 | 228 | 199
Weighted average purchased price (in dollars per share) | $ 32.39 | $ 47.97 | $ 54.89

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Per share weighted-average price paid for shares purchased on open market for issuance under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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