Consolidated Balance Sheets (Parenthetical) - shares	Dec. 31, 2018	Dec. 31, 2017
MGP Operating Partnership
Units Issued (in shares)	266,045,289	266,030,918
Units Outstanding (in shares)	266,000,000.0	266,030,918
Class A Shares
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	70,911,166	70,896,795
Common stock, shares outstanding (in shares)	70,911,166	70,896,795

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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The number of limited partner units issued.

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The number of limited partner units outstanding.

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