Business Combination - Narrative (Details) - GNOG $ in Millions	May 05, 2022 USD ($) shares
Business Acquisition [Line Items]
Issuance of New DraftKings' Class A Common Stock for each Common Share of Golden Nugget Online Gaming (in shares) \| shares	0.365
Shares issued for acquisition (in shares) \| shares	29,300,000
Equity interest acquired	100.00%
Long term receivable	$ 30.1
B2C reporting unit
Business Acquisition [Line Items]
Expected tax deductible amount	160.7
Danville GN Casino Loan
Business Acquisition [Line Items]
Long term receivable	$ 30.0

Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Shares Issued Per Acquiree Share

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

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-Topic 805
-SubTopic 30
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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

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
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- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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-Topic 805
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