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ACQUISITION, INTEGRATION AND RESTRUCTURING EXPENSE - Restructuring Charges (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Dec. 23, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | $ 13,237 | $ 10,900 | $ 6,844
Restructuring expense |  | 20 | 1,268 | 0
Total acquisition, integration and restructuring expense |  | 13,257 | 12,168 | 6,844
Bally’s Atlantic City |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | 4,373 | 0 | 0
Eldorado Resort Casino Shreveport |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions | $ 3,100 | 3,108 | 0 | 0
Casino KC and Casino Vicksburg |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | 1,828 | 1,293 | 0
MontBleu |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | 1,052 | 0 | 0
Black Hawk Casinos |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | 1,021 | 1,724 | 208
Jumer’s Hotel & Casino |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | 1,003 | 0 | 0
Tropicana Evansville |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | 661 | 0 | 0
Centre County, PA |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | 132 | 0 | 0
Dover Downs merger and going public expenses |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Acquisition costs for other recently announced and pending acquisitions |  | $ 59 | $ 7,883 | $ 6,636

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details
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- Definition Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs. + References No definition available. + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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