10-Q

UNITED STATES

SECURITIES & EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2021

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from            to           

Commission File No. 001-37733 (MGM Growth Properties LLC)

Commission File No. 333-215571 (MGM Growth Properties Operating Properties LP)

MGM Growth Properties LLC

MGM Growth Properties Operating Partnership LP

(Exact name of registrant as specified in its charter)

Delaware	(MGM Growth Properties LLC)	47-5513237
Delaware	(MGM Growth Properties Operating Partnership LP)	81-1162318
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

1980 Festival Plaza Drive, Suite #750, Las Vegas, NV 89135

(Address of principal executive offices)

(702) 669-1480

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Class A Shares, no par value	MGP	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    

MGM Growth Properties LLC     Yes  ☒    No  ☐

MGM Growth Properties Operating Partnership LP    Yes ☐    No  ☒

*As a voluntary filer not subject to reporting requirements, MGM Growth Properties Operating Partnership LP has filed all reports under Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months that would have been required had it been subject to such requirements.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    

MGM Growth Properties LLC     Yes  ☒   No  ☐

MGM Growth Properties Operating Partnership LP     Yes  ☒   No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

MGM Growth Properties LLC

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ___

MGM Growth Properties Operating Partnership LP

Large accelerated filer ☐ Accelerated filer ☐ Non-accelerated filer ☒ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ___

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

MGM Growth Properties LLC     Yes ☐ No  ☒

MGM Growth Properties Operating Partnership LP      Yes ☐ No  ☒

As of April 28, 2021, 153,386,208 shares of MGM Growth Properties LLC Class A shares, no par value, and 1 share of MGM Growth Properties LLC Class B share, no par value, were outstanding.

EXPLANATORY NOTE

This report combines the quarterly reports on Form 10-Q for the period ended March 31, 2021, of MGM Growth Properties LLC, a Delaware limited liability corporation, and MGM Growth Properties Operating Partnership LP, a Delaware limited partnership. Unless otherwise indicated or unless the context requires otherwise, all references in this report to “we,” “us,” “our,” “MGP” or “the Company” refer to MGM Growth Properties LLC together with its consolidated subsidiaries, including MGM Growth Properties Operating Partnership LP. Unless otherwise indicated or unless the context requires otherwise, all references to the “Operating Partnership” refer to MGM Growth Properties Operating Partnership LP together with its consolidated subsidiaries.

MGP is a real estate investment trust (“REIT”), and the owner of the sole general partner of the Operating Partnership. As of March 31, 2021, MGP owned approximately 57.9% of the Operating Partnership units, each such unit representing limited partnership interests in the Operating Partnership (“Operating Partnership units”). The remaining approximately 42.1% of the Operating Partnership’s units are owned by our parent, MGM Resorts International (“MGM”) and certain of its subsidiaries. As the owner of the sole general partner of the Operating Partnership, MGP has the full, exclusive and complete responsibility for the Operating Partnership’s day-to-day management and control.

We believe combining the quarterly reports on Form 10-Q of MGP and the Operating Partnership into this single report results in the following benefits:

•enhances investors’ understanding of MGP and the Operating Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business;

•eliminates duplicative disclosure and provides a more streamlined and readable presentation since a substantial portion of the disclosure applies to both MGP and the Operating Partnership, which we believe will assist investors in getting all relevant information on their investment in one place rather than having to access and review largely duplicative reports; and

•creates time and cost efficiencies through the preparation of one combined report instead of two separate reports.

There are a few differences between MGP and the Operating Partnership, which are reflected in the disclosures in this report. We believe it is important to understand the differences between MGP and the Operating Partnership in the context of how we operate as an interrelated consolidated company. MGP is a REIT, whose only material assets consist of Operating Partnership units and sole beneficial ownership of the general partner of the Operating Partnership. As a result, MGP does not conduct business itself, other than acting as the owner of the sole general partner of the Operating Partnership, but it may from time to time issue additional public equity in the form of Class A shares. The Operating Partnership holds all the assets of the Company. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity. Except for the net proceeds from certain offerings of Class A shares by MGP, which were contributed to the Operating Partnership in exchange for Operating Partnership units, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s issuance of indebtedness or through the issuance of Operating Partnership units.

The presentation of noncontrolling interest, shareholders’ equity and partners’ capital are the main areas of difference between the condensed consolidated financial statements of MGP and those of the Operating Partnership. The Operating Partnership units held by subsidiaries of MGM are accounted for as partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as noncontrolling interest within equity in MGP’s condensed consolidated financial statements. The Operating Partnership units held by MGP in the Operating Partnership are accounted for as partners’ capital in the Operating Partnership’s condensed consolidated financial statements and within Class A shareholders’ equity in MGP’s condensed consolidated financial statements. These differences in the presentations between shareholders’ equity in MGP’s condensed consolidated financial statements and partners’ capital in the Operating Partnership’s condensed consolidated financial statements therefore result from the differences in the equity and limited partnership interests issued at the MGP and Operating Partnership levels, respectively.

To help investors understand the significant differences between MGP and the Operating Partnership, this report presents the condensed consolidated financial statements separately for MGP and the Operating Partnership.

As the sole beneficial owner of MGM Growth Properties OP GP LLC, which is the sole general partner with control of the Operating Partnership, MGP consolidates the Operating Partnership for financial reporting purposes, and it does not have

any assets other than its investment in the Operating Partnership. Therefore, the assets and liabilities of MGP and the Operating Partnership are the same on their respective condensed consolidated financial statements. The separate discussions of MGP and the Operating Partnership in this report should be read in conjunction with each other to understand the results of the Company on a condensed consolidated basis and how management operates the Company.

In order to establish that the Chief Executive Officer and the Chief Financial Officer of each entity have made the requisite certifications and that the Company and the Operating Partnership are compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and 18 U.S.C. §1350, this report also includes separate “Item 4. Controls and Procedures” sections and separate Exhibit 31 and 32 certifications for each of the Company and the Operating Partnership.

All other sections of this report, including Management’s Discussion and Analysis of Financial Condition and Results of Operations and Quantitative and Qualitative Disclosures about Market Risk, are presented together for MGP and the Operating Partnership.

MGM GROWTH PROPERTIES LLC

FORM 10-Q

I N D E X

		Page
PART I.	FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)	1
	MGM Growth Properties LLC:
	Condensed Consolidated Balance Sheets at March 31, 2021 and December 31, 2020	1
	Condensed Consolidated Statements of Operations for the Three Months Ended March 31, 2021 and March 31, 2020	2
	Condensed Consolidated Statements of Comprehensive Income (Loss) for the Three Months Ended March 31, 2021 and March 31, 2020	3
	Condensed Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2021 and March 31, 2020	4
	Condensed Consolidated Statements of Shareholders’ Equity for the Three Months Ended March 31, 2021 and March 31, 2020	5
	MGM Growth Properties Operating Partnership LP:
	Condensed Consolidated Balance Sheets at March 31, 2021 and December 31, 2020	7
	Condensed Consolidated Statements of Operations for the Three Months Ended March 31, 2021 and March 31, 2020	8
	Condensed Consolidated Statements of Comprehensive Income (Loss) for the Three Months Ended March 31, 2021 and March 31, 2020	9
	Condensed Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2021 and March 31, 2020	10
	Condensed Consolidated Statements of Partners’ Capital for the Three Months Ended March 31, 2021 and March 31, 2020	11
	Notes to Condensed Consolidated Financial Statements	13
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	30
Item 4.	Controls and Procedures	30
PART II.	OTHER INFORMATION	31
Item 1.	Legal Proceedings	31
Item 1A.	Risk Factors	31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	31
Item 6.	Exhibits	33
SIGNATURES		34

Part I.    FINANCIAL INFORMATION

Item 1.    Financial Statements

MGM GROWTH PROPERTIES LLC

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except share amounts)

(unaudited)

	March 31, 2021		December 31, 2020
ASSETS
Real estate investments, net	$	8,251,957	$	8,310,737
Lease incentive asset	502,156		507,161
Investment in unconsolidated affiliate	820,390		810,066
Cash and cash equivalents	143,231		626,385
Prepaid expenses and other assets	24,310		25,525
Above market lease, asset	39,473		39,867
Operating lease right-of-use assets	280,708		280,565
Total assets	$	10,062,225	$	10,600,306
LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities
Debt, net	$	4,161,439	$	4,168,959
Due to MGM Resorts International and affiliates	335		316
Accounts payable, accrued expenses and other liabilities	75,386		124,109
Accrued interest	59,510		48,505
Dividend and distribution payable	131,025		136,484
Deferred revenue	170,015		156,760
Deferred income taxes, net	33,298		33,298
Operating lease liabilities	341,386		341,133
Total liabilities	4,972,394		5,009,564
Commitments and contingencies (Note 11)
Shareholders' equity
Class A shares: no par value, 1,000,000,000 shares authorized, 153,323,880 and 131,459,651 shares issued and outstanding as of March 31, 2021 and December 31, 2020, respectively	—		—
Additional paid-in capital	3,459,599		3,114,331
Accumulated deficit	(439,194)		(422,897)
Accumulated other comprehensive loss	(53,553)		(51,197)
Total Class A shareholders' equity	2,966,852		2,640,237
Noncontrolling interest	2,122,979		2,950,505
Total shareholders' equity	5,089,831		5,590,742
Total liabilities and shareholders' equity	$	10,062,225	$	10,600,306

The accompanying notes are an integral part of these condensed consolidated financial statements.

1

MGM GROWTH PROPERTIES LLC

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share amounts)

(unaudited)

	Three Months Ended March 31,
	2021		2020
Revenues
Rental revenue	$	188,303	$	203,531
Ground lease and other	6,039		6,039
Total Revenues	194,342		209,570
Expenses
Depreciation	57,937		62,047
Property transactions, net	843		195,056
Ground lease expense and other	5,920		5,920
Acquisition-related expenses	—		622
General and administrative	3,659		4,882
Total Expenses	68,359		268,527
Other income (expense)
Income from unconsolidated affiliate	25,485		13,363
Interest income	317		1,091
Interest expense	(68,446)		(49,198)
Gain (loss) on unhedged interest rate swaps, net	35,059		(12,120)
Other	(197)		(18,368)
	(7,782)		(65,232)
Income (loss) before income taxes	118,201		(124,189)
Provision for income taxes	(2,792)		(1,133)
Net income (loss)	115,409		(125,322)
Less: Net (income) loss attributable to noncontrolling interest	(55,811)		75,574
Net income (loss) attributable to Class A shareholders	$	59,598	$	(49,748)
Weighted average Class A shares outstanding:
Basic	135,709		123,259
Diluted	135,936		123,259
Per Class A share data
Earnings per Class A share (basic)	$	0.44	$	(0.40)
Earnings per Class A share (diluted)	$	0.44	$	(0.40)

The accompanying notes are an integral part of these condensed consolidated financial statements.

2

MGM GROWTH PROPERTIES LLC

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(in thousands)

(unaudited)

	Three Months Ended March 31,
	2021		2020
Net income (loss)	$	115,409	$	(125,322)
Other comprehensive income (loss)	16,579		(95,320)
Comprehensive income (loss)	131,988		(220,642)
Less: Comprehensive (income) loss attributable to noncontrolling interests	(64,191)		133,363
Comprehensive income (loss) attributable to Class A shareholders	$	67,797	$	(87,279)

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

MGM GROWTH PROPERTIES LLC

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

	Three Months Ended March 31,
	2021		2020
Cash flows from operating activities
Net income (loss)	$	115,409	$	(125,322)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	57,937		62,047
Property transactions, net	843		195,056
Amortization of financing costs	2,863		2,509
Loss on retirement of debt	—		18,129
Non-cash ground lease, net	259		260
Deemed contributions - tax sharing agreement	2,792		1,133
Straight-line rental revenues, excluding amortization of lease incentive asset	13,633		10,781
Amortization of lease incentive asset	5,005		5,005
Amortization of deferred revenue on non-normal tenant improvements	(378)		(378)
Amortization of cash flow hedges	4,618		756
(Gain) loss on unhedged interest rate swaps, net	(35,059)		12,120
Share-based compensation	852		754
Income from unconsolidated affiliate	(25,485)		(13,363)
Distributions from unconsolidated affiliate	15,161		12,181
Change in operating assets and liabilities:
Prepaid expenses and other assets	242		(1,927)
Due to MGM Resorts International and affiliates	19		586
Accounts payable, accrued expenses and other liabilities	(1,644)		1,028
Accrued interest	11,005		(5,454)
Net cash provided by operating activities	168,072		175,901
Cash flows from investing activities
Proceeds from sale of Mandalay Bay real estate assets, net	—		58,084
Net cash provided by investing activities	—		58,084
Cash flows from financing activities
Net repayments under bank credit facility	(9,500)		(353,750)
Proceeds from issuance of bridge loan facility	—		1,304,625
Deferred financing costs	—		(1,335)
Proceeds from issuance of Class A shares, net	676,034		524,616
Redemption of Operating Partnership units	(1,181,276)		—
Dividends and distributions paid	(136,484)		(147,349)
Other	—		(277)
Net cash provided by (used in) financing activities	(651,226)		1,326,530
Cash and cash equivalents
Net increase (decrease) for the period	(483,154)		1,560,515
Balance, beginning of period	626,385		202,101
Balance, end of period	$	143,231	$	1,762,616
Supplemental cash flow disclosures
Interest paid	$	49,960	$	51,388
Non-cash investing and financing activities
Accrual of dividend and distribution payable to Class A shareholders and Operating Partnership unit holders	$	131,025	$	158,488
Investment in MGP BREIT Venture	$	—	$	802,000
MGP BREIT Venture assumption of bridge loan facility	$	—	$	1,304,625

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

MGM GROWTH PROPERTIES LLC

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

(in thousands)

(unaudited)

	Class A
	Shares	Par Value		Additional Paid-in Capital		Accumulated Deficit		Accumulated Other Comprehensive Loss		Total Class A Shareholders' Equity		Noncontrolling Interest		Total Shareholders' Equity
Balance at January 1, 2021	131,460	$	—	$	3,114,331	$	(422,897)	$	(51,197)	$	2,640,237	$	2,950,505	$	5,590,742
Net income	—	—		—		59,598		—		59,598		55,811		115,409
Issuance of Class A shares	21,850	—		565,437		—		(3,693)		561,744		114,290		676,034
Redemption of Operating Partnership units	—	—		(220,627)		—		(6,860)		(227,487)		(953,789)		(1,181,276)
Cash flow hedges	—	—		—		—		8,199		8,199		8,380		16,579
Share-based compensation	—	—		431		—		—		431		421		852
Deemed contribution - tax sharing agreement	—	—		—		—		—		—		2,792		2,792
Dividends and distributions declared ($0.4950 per Class A share)	—	—		—		(75,895)		—		(75,895)		(55,130)		(131,025)
Other	14	—		27		—		(2)		25		(301)		(276)
Balance at March 31, 2021	153,324	$	—	$	3,459,599	$	(439,194)	$	(53,553)	$	2,966,852	$	2,122,979	$	5,089,831

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

MGM GROWTH PROPERTIES LLC

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

(in thousands)

(unaudited)

	Class A
	Shares	Par Value		Additional Paid-in Capital		Accumulated Deficit		Accumulated Other Comprehensive Loss		Total Class A Shareholders' Equity		Noncontrolling Interest		Total Shareholders' Equity
Balance at January 1, 2020	113,807	$	—	$	2,766,325	$	(244,381)	$	(7,045)	$	2,514,899	$	4,383,113	$	6,898,012
Net loss*	—	—		—		(49,748)		—		(49,748)		(59,038)		(108,786)
Issuance of Class A shares*	17,524	—		443,363		—		(646)		442,717		63,481		506,198
MGP BREIT Venture Transaction*	—	—		8,228		—		59		8,287		55,617		63,904
Reclassification and remeasurements of temporary equity*	—	—		—		—		—		—		(1,599,319)		(1,599,319)
Cash flow hedges*	—	—		—		—		(37,531)		(37,531)		(44,989)		(82,520)
Share-based compensation*	—	—		289		—		—		289		360		649
Deemed contribution - tax sharing agreement*	—	—		—		—		—		—		882		882
Dividends and distributions declared ($0.4750 per Class A share)*	—	—		—		(62,389)		—		(62,389)		(74,810)		(137,199)
Other*	16	—		209		—		—		209		(169)		40
Balance at March 31, 2020	131,347	$	—	$	3,218,414	$	(356,518)	$	(45,163)	$	2,816,733	$	2,725,128	$	5,541,861

(*) Excludes amounts attributable to redeemable noncontrolling interest. See Note 2.

The accompanying notes are an integral part of these condensed consolidated financial statements.

6

MGM GROWTH PROPERTIES OPERATING PARTNERSHIP LP

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except unit amounts)

(unaudited)

	March 31, 2021		December 31, 2020
ASSETS
Real estate investments, net	$	8,251,957	$	8,310,737
Lease incentive asset	502,156		507,161
Investment in unconsolidated affiliate	820,390		810,066
Cash and cash equivalents	143,231		626,385
Prepaid expenses and other assets	24,310		25,525
Above market lease, asset	39,473		39,867
Operating lease right-of-use assets	280,708		280,565
Total assets	$	10,062,225	$	10,600,306
LIABILITIES AND PARTNERS' CAPITAL
Liabilities
Debt, net	$	4,161,439	$	4,168,959
Due to MGM Resorts International and affiliates	335		316
Accounts payable, accrued expenses and other liabilities	75,386		124,109
Accrued interest	59,510		48,505
Distribution payable	131,025		136,484
Deferred revenue	170,015		156,760
Deferred income taxes, net	33,298		33,298
Operating lease liabilities	341,386		341,133
Total liabilities	4,972,394		5,009,564
Commitments and contingencies (Note 11)
Partners’ capital
General partner	—		—
Limited partners: 264,696,637 and 279,966,531 Operating Partnership units issued and outstanding as of March 31, 2021 and December 31, 2020, respectively.	5,089,831		5,590,742
Total partners’ capital	5,089,831		5,590,742
Total liabilities and partners’ capital	$	10,062,225	$	10,600,306

The accompanying notes are an integral part of these condensed consolidated financial statements.

7

MGM GROWTH PROPERTIES OPERATING PARTNERSHIP LP

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per unit amounts)

(unaudited)

	Three Months Ended March 31,
	2021		2020
Revenues
Rental revenue	$	188,303	$	203,531
Ground lease and other	6,039		6,039
Total Revenues	194,342		209,570
Expenses
Depreciation	57,937		62,047
Property transactions, net	843		195,056
Ground lease expense and other	5,920		5,920
Acquisition-related expenses	—		622
General and administrative	3,659		4,882
Total Expenses	68,359		268,527
Other income (expense)
Income from unconsolidated affiliate	25,485		13,363
Interest income	317		1,091
Interest expense	(68,446)		(49,198)
Gain (loss) on unhedged interest rate swaps, net	35,059		(12,120)
Other	(197)		(18,368)
	(7,782)		(65,232)
Income (loss) before income taxes	118,201		(124,189)
Provision for income taxes	(2,792)		(1,133)
Net income (loss)	$	115,409	$	(125,322)
Weighted average Operating Partnership units outstanding
Basic	276,692		324,310
Diluted	276,919		324,310
Per Operating Partnership unit data
Earnings per Operating Partnership unit (basic)	$	0.42	$	(0.39)
Earnings per Operating Partnership unit (diluted)	$	0.42	$	(0.39)

The accompanying notes are an integral part of these condensed consolidated financial statements.

8

MGM GROWTH PROPERTIES OPERATING PARTNERSHIP LP

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(in thousands)

(unaudited)

	Three Months Ended March 31,
	2021		2020
Net income (loss)	$	115,409	$	(125,322)
Unrealized gain (loss) on cash flow hedges	16,579		(95,320)
Comprehensive income (loss)	$	131,988	$	(220,642)

The accompanying notes are an integral part of these condensed consolidated financial statements.

9

MGM GROWTH PROPERTIES OPERATING PARTNERSHIP LP

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

	Three Months Ended March 31,
	2021		2020
Cash flows from operating activities
Net income (loss)	$	115,409	$	(125,322)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	57,937		62,047
Property transactions, net	843		195,056
Amortization of financing costs	2,863		2,509
Loss on retirement of debt	—		18,129
Non-cash ground lease, net	259		260
Deemed contributions - tax sharing agreement	2,792		1,133
Straight-line rental revenues, excluding amortization of lease incentive asset	13,633		10,781
Amortization of lease incentive asset	5,005		5,005
Amortization of deferred revenue on non-normal tenant improvements	(378)		(378)
Amortization of cash flow hedges	4,618		756
(Gain) loss on unhedged interest rate swaps, net	(35,059)		12,120
Share-based compensation	852		754
Income from unconsolidated affiliate	(25,485)		(13,363)
Distributions from unconsolidated affiliate	15,161		12,181
Change in operating assets and liabilities:
Prepaid expenses and other assets	242		(1,927)
Due to MGM Resorts International and affiliates	19		586
Accounts payable, accrued expenses and other liabilities	(1,644)		1,028
Accrued interest	11,005		(5,454)
Net cash provided by operating activities	168,072		175,901
Cash flows from investing activities
Proceeds from sale of Mandalay Bay real estate assets, net	—		58,084
Net cash provided by investing activities	—		58,084
Cash flows from financing activities
Net repayments under bank credit facility	(9,500)		(353,750)
Proceeds from issuance of bridge loan facility	—		1,304,625
Deferred financing costs	—		(1,335)
Proceeds from issuance of Class A shares by MGP	676,034		524,616
Redemption of Operating Partnership units	(1,181,276)		—
Distributions paid	(136,484)		(147,349)
Other	—		(277)
Net cash provided by (used in) financing activities	(651,226)		1,326,530
Cash and cash equivalents
Net increase (decrease) for the period	(483,154)		1,560,515
Balance, beginning of period	626,385		202,101
Balance, end of period	$	143,231	$	1,762,616
Supplemental cash flow disclosures
Interest paid	$	49,960	$	51,388
Non-cash investing and financing activities
Accrual of distribution payable to Operating Partnership unit holders	$	131,025	$	158,488
Investment in MGP BREIT Venture	$	—	$	802,000
MGP BREIT Venture assumption of bridge loan facility	$	—	$	1,304,625

The accompanying notes are an integral part of these condensed consolidated financial statements.

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MGM GROWTH PROPERTIES OPERATING PARTNERSHIP LP

CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS’ CAPITAL

(in thousands)

(unaudited)

	General Partner		Limited Partners		Total Partners' Capital
Balance at January 1, 2021	$	—	$	5,590,742	$	5,590,742
Net income	—		115,409		115,409
Proceeds from issuance of Class A shares by MGP	—		676,034		676,034
Redemption of Operating Partnership units	—		(1,181,276)		(1,181,276)
Cash flow hedges	—		16,579		16,579
Share-based compensation	—		852		852
Deemed contribution - tax sharing agreement	—		2,792		2,792
Distributions declared ($0.4950 per unit)	—		(131,025)		(131,025)
Other	—		(276)		(276)
Balance at March 31, 2021	$	—	$	5,089,831	$	5,089,831

The accompanying notes are an integral part of these condensed consolidated financial statements.

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MGM GROWTH PROPERTIES OPERATING PARTNERSHIP LP

CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS’ CAPITAL

(in thousands)

(unaudited)

	General Partner		Limited Partners		Total Partners' Capital
Balance at January 1, 2020	$	—	$	6,898,012	$	6,898,012
Net loss*	—		(108,786)		(108,786)
Proceeds from issuance of Class A shares by MGP*	—		506,198		506,198
MGP BREIT Venture Transaction*	—		63,904		63,904
Reclassification and remeasurements of temporary equity*	—		(1,599,319)		(1,599,319)
Cash flow hedges*	—		(82,520)		(82,520)
Share-based compensation*	—		649		649
Deemed contribution - tax sharing agreement*	—		882		882
Distributions declared ($0.4750 per unit)*	—		(137,199)		(137,199)
Other*	—		40		40
Balance at March 31, 2020	$	—	$	5,541,861	$	5,541,861

(*) Excludes amounts attributable to redeemable capital. See Note 2.

The accompanying notes are an integral part of these condensed consolidated financial statements.

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MGM GROWTH PROPERTIES LLC AND MGM GROWTH PROPERTIES OPERATING PARTNERSHIP LP CONDENSED NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

NOTE 1 — BUSINESS

Organization. MGM Growth Properties LLC (“MGP” or the “Company”) is a limited liability company that was organized in Delaware in October 2015. MGP conducts its operations through MGM Growth Properties Operating Partnership LP (the “Operating Partnership”), a Delaware limited partnership that was formed in January 2016 and became a subsidiary of MGP in April 2016. The Company elected to be taxed as a real estate investment trust (“REIT”) commencing with its taxable year ended December 31, 2016.

MGP is a publicly traded REIT primarily engaged through its investment in the Operating Partnership which owns, acquires, leases and invests in large-scale destination entertainment and leisure properties, whose tenants generally offer casino gaming, hotel, convention, dining, entertainment and retail and other amenities. A wholly owned subsidiary of the Operating Partnership leases its real estate properties back to a wholly owned subsidiary of MGM under a master lease agreement (the “MGM-MGP Master Lease”). In February 2020, the Operating Partnership entered into certain transactions to form a venture owned 50.1% by the Operating Partnership and 49.9% by a subsidiary of Blackstone Real Estate Income Trust, Inc. (“BREIT”, such venture, the “MGP BREIT Venture”), which owns the real estate assets of MGM Grand Las Vegas and Mandalay Bay and leases such real estate properties back to a wholly owned subsidiary of MGM under a master lease agreement (the “MGP BREIT Venture lease”, such formation transaction, the “MGP BREIT Venture Transaction”).

As of March 31, 2021, there were approximately 264.7 million Operating Partnership units outstanding in the Operating Partnership, of which MGM owned approximately 111.4 million, or 42.1%, and MGP owned the remaining 57.9%. MGM’s Operating Partnership units are exchangeable into Class A shares of MGP on a one-to-one basis, or cash at the Fair Market Value of a Class A share (as defined in the Operating Partnership’s partnership agreement). The determination of settlement method is at the option of MGP’s independent conflicts committee. MGM’s indirect ownership of these Operating Partnership units is recognized as a noncontrolling interest in MGP’s financial statements. A wholly owned subsidiary of MGP is the general partner of the Operating Partnership and operates and controls all of its business affairs. As a result, MGP consolidates the Operating Partnership and its subsidiaries. MGM also has ownership of MGP’s outstanding Class B share. The Class B share is a non-economic interest in MGP which does not provide its holder any rights to profits or losses or any rights to receive distributions from the operations of MGP or upon liquidation or winding up of MGP but which represents a majority of the voting power of MGP’s shares. As a result, MGP continues to be controlled by MGM through its majority voting rights and is consolidated by MGM.

In March 2021, certain subsidiaries of MGM delivered a notice of redemption to the Company covering approximately 37.1 million Operating Partnership units that they held that was satisfied with aggregate cash proceeds of approximately $1.2 billion using cash on hand together with the proceeds from the issuance of Class A shares. Refer to Note 8 for further discussion.

NOTE 2 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of presentation. The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information set forth in the Accounting Standards Codification (“ASC”), as published by the Financial Accounting Standards Board (“FASB”), and with the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. All adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of results for the interim period have been included.

The accompanying condensed consolidated financial statements and related notes should be read in conjunction with the audited financial statements and notes thereto included in the Company’s most recent Annual Report on Form 10-K.

Reclassifications. Certain reclassifications have been made to conform the prior period presentation.

Principles of consolidation. The Company identifies entities for which control is achieved through means other than voting rights and to determine which business enterprise is the primary beneficiary of variable interest entities (“VIE”). A VIE is an entity in which either (i) the equity investors as a group, if any, lack the power through voting or similar rights to direct the activities of such entity that most significantly impact such entity’s economic performance or (ii) the equity investment at risk is insufficient to finance that entity’s activities without additional subordinated financial support. The Company identifies the primary beneficiary of a VIE as the enterprise that has both of the following characteristics: (i) the power to direct the activities

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of the VIE that most significantly impact the entity’s economic performance; and (ii) the obligation to absorb losses or receive benefits of the VIE that could potentially be significant to the entity. The Company consolidates its investment in a VIE when it determines that it is its primary beneficiary. The Company may change its original assessment of a VIE upon subsequent events such as the modification of contractual arrangements that affect the characteristics or adequacy of the entity’s equity investments at risk and the disposition of all or a portion of an interest held by the primary beneficiary. The Company performs this analysis on an ongoing basis. The consolidated financial statements of MGP include the accounts of the Operating Partnership, a VIE of which the Company is the primary beneficiary, as well as its wholly owned and majority-owned subsidiaries, which represents all of MGP’s assets and liabilities. As MGP holds what is deemed a majority voting interest in the Operating Partnership through its ownership of the Operating Partnership’s sole general partner, it qualifies for the exemption from providing certain of the required disclosures associated with investments in VIEs. The consolidated financial statements of the Operating Partnership include the accounts of its wholly owned subsidiary, MGP Lessor LLC, which is the MGM-MGP Master Lease landlord, a VIE of which the Operating Partnership is the primary beneficiary. As of March 31, 2021, on a consolidated basis, MGP Lessor, LLC had total assets of $9.1 billion primarily related to its real estate investments, and total liabilities of $543.9 million primarily related to its deferred revenue and operating lease liabilities.

For entities determined not to be VIEs, the Company consolidates such entities in which the Company owns 100% of the equity. For entities in which the Company owns less than 100% of the equity interest, the Company consolidates the entity under the voting interest model if it has controlling financial interest based upon the terms of the respective entities’ ownership agreements. If the entity does not qualify for consolidation under the voting interest model and the Company has significant influence over the operating and financial decisions of the entity, the Company accounts for the entity under the equity method, such as the Company’s MGP BREIT Venture, which does not qualify for consolidation as the Company has joint control, given the entity is structured with substantive participating rights whereby both owners participate in the decision making process which prevents the Company from exerting a controlling financial interest, as defined in ASC 810.

Noncontrolling interest. MGP presents noncontrolling interest and classifies such interest as a component of consolidated shareholders’ equity, separate from the Company’s Class A shareholders’ equity. Noncontrolling interest in MGP represents Operating Partnership units currently held by subsidiaries of MGM. Comprehensive income or loss of the Operating Partnership is allocated to its noncontrolling interest based on the noncontrolling interest’s ownership percentage in the Operating Partnership except for income tax expenses. Ownership percentage is calculated by dividing the number of Operating Partnership units held by the noncontrolling interest by the total Operating Partnership units held by the noncontrolling interest and the Company. Issuance of additional Class A shares and Operating Partnership units changes the ownership interests of both the noncontrolling interest and the Company. Such transactions and the related proceeds are treated as capital transactions.

MGM may tender its Operating Partnership units for redemption in exchange for cash equal to the market price of MGP’s Class A shares at the time of redemption or for unregistered Class A shares on a one-for-one basis. Such election to pay cash or issue Class A shares to satisfy an Operating Partnership unitholder’s redemption request is solely within the control of MGP’s independent conflicts committee.

Redeemable noncontrolling interest and redeemable capital. On January 14, 2020 the Operating Partnership agreed to waive its right following the closing of the MGP BREIT Venture Transaction to issue MGP Class A shares, in lieu of cash, to settle redemptions of Operating Partnership units held by MGM up to a maximum cash redemption amount of $1.4 billion. In connection with the waiver, the Operating Partnership and the Company reclassified, from permanent equity to temporary equity, the carrying value of Operating Partnership units that could require cash redemption and remeasured the units to their redemption value. The Operating Partnership units that comprised the $1.4 billion redemption amount were determined based on a 3% discount to the ten-day average closing price prior to the date of determination.

At each subsequent reporting period, the carrying value of temporary equity was remeasured to the greater of: (1) the carrying value of the number of units then considered redeemable, inclusive of the comprehensive income and losses attributed based on a per unit or share basis in accordance with ASC 810 or (2) the redemption value of the number of units that are then redeemable based on the remaining aggregate cash redemption amount and the per share redemption value, except that decreases in the per unit or share redemption were limited to the amount of previous increases, with the differences between the carrying value and the remeasured value being recorded as an adjustment in additional paid-in capital (in lieu of retained earnings) or limited partners’ capital.

The $1.4 billion maximum cash redemption amount was fulfilled by the $700 million redeemed on May 18, 2020 and the $700 million redeemed on December 2, 2020.

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The components of equity that related to the Company’s redeemable noncontrolling interest and the Operating Partnership’s redeemable capital during the quarter ended March 31, 2020 were as follows:

(in thousands)
As of January 1, 2020	$	—
Reclassification and remeasurement adjustments	1,599,319
Attribution of:
Net loss	(16,536)
Proceeds from the issuance of Class A shares by MGP	18,418
MGP BREIT Venture Transaction	16,136
Cash flow hedges	(12,800)
Share-based compensation	105
Deemed contribution - tax sharing agreement	251
MGP dividends and Operating Partnership distributions declared	(21,289)
Other	(48)
As of March 31, 2020	$	1,583,556

Property transactions, net. Property transactions, net are comprised of transactions related to long-lived assets, such as gains and losses on the disposition of assets.

Fair value measurements. Fair value measurements are utilized in the accounting and impairment assessments of the Company’s real estate investments, investment in unconsolidated affiliate, and certain of its financial assets and liabilities. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and is measured according to a hierarchy that includes: Level 1 inputs, such as quoted prices in an active market; Level 2 inputs, which are observable inputs for similar assets; or Level 3 inputs, which are unobservable inputs. The Company used the following inputs in its fair value measurements:

•Level 2 inputs for its debt fair value disclosures. See Note 6; and

•Level 2 inputs when measuring the fair value of its interest rate swaps. See Note 7.

Reportable segment. The Company’s operations consist of investments in real estate, both wholly-owned and through its investment in MGP BREIT Venture, for which all such real estate properties are similar to one another in that they consist of large-scale destination entertainment and leisure properties and related offerings, whose tenants generally offer casino gaming, hotel, convention, dining, entertainment and retail amenities, have similar economic characteristics and are governed by triple-net operating leases. The operating results of the Company’s wholly owned and equity method real estate investments are regularly reviewed, in the aggregate, by the chief operating decision maker. As such, the Company has one reportable segment.

Income tax provision. For interim income tax reporting, the Company estimates its annual effective tax rate and applies it to its year-to-date ordinary income. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur. The Company’s effective income tax rate was a provision of 2.4% on income before income taxes and a provision of 0.9% on loss before income taxes for the three months ended March 31, 2021 and 2020, respectively.

The Company and MGM join in the filing of a New Jersey consolidated corporation business tax return and have entered into a tax sharing agreement which provides for an allocation of taxes due in the consolidated New Jersey return. No amounts were due to MGM under the tax sharing agreement between the Company and MGM as of March 31, 2021 or December 31, 2020.

Recently issued accounting standards. In March 2020, the FASB issued ASC 848, “Reference Rate Reform (Topic 848)”. ASC 848 provides optional expedients for applying U.S. GAAP to reference rate reform related contracts, hedging relationships and other qualifying transactions. Application of these expedients preserve the presentation of derivative instruments consistent with past presentation. The guidance is optional and may be elected when or as reference rate reform activities occur. The Company is currently evaluating whether it will elect practical expedients if and when its hedging and related activities are impacted.

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NOTE 3 — REAL ESTATE INVESTMENTS

The carrying value of real estate investments is as follows:

	March 31, 2021		December 31, 2020
	(in thousands)
Land	$	3,431,228	$	3,431,228
Buildings, building improvements, land improvements and integral equipment	7,424,820		7,426,110
	10,856,048		10,857,338
Less: Accumulated depreciation	(2,604,091)		(2,546,601)
	$	8,251,957	$	8,310,737

NOTE 4 — INVESTMENT IN UNCONSOLIDATED AFFILIATE

As of March 31, 2021, the Operating Partnership’s investment in unconsolidated affiliate was comprised of its 50.1% interest in MGP BREIT Venture. The Operating Partnership recorded its share of income of $25.5 million and $13.4 million for the three months ended March 31, 2021 and 2020, respectively, as “Income from unconsolidated affiliate” in the condensed consolidated statements of operations. Additionally, the Operating Partnership received $15.2 million and $12.2 million in distributions from MGP BREIT Venture during the three months ended March 31, 2021 and 2020, respectively. The Operating Partnership received its distribution relating to March 2021, together with its distribution for April 2021, of $16.0 million upon execution of the cash flow guarantee, discussed below.

Summarized results of operations of MGP BREIT Venture are as follows:

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Net revenues	$	98,681	$	50,437
Net income	50,869		26,675

MGP BREIT Venture guarantee. The Operating Partnership provides a guarantee for losses incurred by the lenders of the $3.0 billion indebtedness of the MGP BREIT Venture arising out of certain bad acts by the Operating Partnership, its venture partner, or the venture, such as fraud or willful misconduct, based on the party’s percentage ownership of the MGP BREIT Venture, which guarantee is capped at 10% of the principal amount outstanding at the time of the loss. The Operating Partnership and its venture partner have separately indemnified each other for the other party’s share of the overall liability exposure, if at fault. The guarantee is accounted for under ASC 460 at fair value; such value is immaterial.

MGP BREIT Venture excess cash flow guarantee. The MGP BREIT Venture loan agreement requires that the tenant EBITDAR to MGP BREIT Venture cash interest ratio is maintained above a specified level. If this ratio is not met for two consecutive fiscal quarters, then the borrowers will be unable to distribute excess cash flows to the venture partners unless and until an excess cash flow guarantee is provided. The ratio was not met for the two consecutive quarters ended December 31, 2020, and, as a result, in April 2021, the Operating Partnership and an entity affiliated with BREIT each delivered an excess cash flow guarantee to the lenders covering all distributions since January 1, 2021. The guarantee provides that the MGP BREIT Venture may distribute an aggregate amount of cash not to exceed 9.9% of the principal amount of the MGP BREIT Venture’s outstanding indebtedness under the loan agreement, after which distributions must remain at the MGP BREIT Venture in a restricted cash account until such time as the tenant EBITDAR to MGP BREIT Venture cash interest ratio is met for two consecutive quarters. In addition, in the event of a default under the loan agreement while the ratio is not met, the Company may be required to return its respective share of distributions received during the period covered by the guarantee.

NOTE 5 — LEASES

MGM-MGP Master Lease. The MGM-MGP Master Lease is accounted for as an operating lease and has an initial lease term of ten years that began on April 25, 2016 (other than with respect to MGM National Harbor, as described below) with the potential to extend the term for four additional five-year terms thereafter at the option of the tenant. The lease provides that any extension of its term must apply to all of the real estate under the lease at the time of the extension. With respect to MGM National Harbor, the initial lease term ends on August 31, 2024. Thereafter, the initial term of the lease with respect to MGM National Harbor may be renewed at the option of the tenant for an initial renewal period lasting until the earlier of the

16

end of the then-current term of the lease or the next renewal term (depending on whether MGM elects to renew the other properties under the lease in connection with the expiration of the initial ten-year term). If, however, the tenant chooses not to renew the lease with respect to MGM National Harbor after the initial MGM National Harbor term under the lease, the tenant would also lose the right to renew the lease with respect to the rest of the properties when the initial ten-year lease term ends related to the rest of the properties in 2026. The lease has a triple-net structure, which requires the tenant to pay substantially all costs associated with the lease, including real estate taxes, insurance, utilities and routine maintenance, in addition to the base rent. Additionally, the lease provides MGP with a right of first offer with respect to MGM Springfield and with respect to any future gaming development by MGM on the undeveloped land adjacent to Empire City, which MGP may exercise should MGM elect to sell either property in the future.

Rent under the lease consists of a “base rent” component and a “percentage rent” component. As of March 31, 2021, the base rent represents approximately 91% of the rent payments due under the lease and the percentage rent represents approximately 9% of the rent payments due under the lease. The base rent includes a fixed annual rent escalator of 2.0% for the second through the sixth lease years (as defined in the lease). Thereafter, beginning on April 1, 2022, the annual escalator of 2.0% will be subject to the tenant and, without duplication, the operating subsidiary sublessees of the tenant, collectively meeting an adjusted net revenue to rent ratio of 6.25:1.00 based on their net revenue from the leased properties subject to the lease (as determined in accordance with U.S. GAAP, adjusted to exclude net revenue attributable to certain scheduled subleases and, at the tenant’s option, reimbursed cost revenue). The percentage rent will initially be a fixed amount for approximately the first six years and will then be adjusted every five years based on the average annual adjusted net revenues of the tenant and, without duplication, the operating subtenants, from the leased properties subject to the lease at such time for the trailing five calendar-year period (calculated by multiplying the average annual adjusted net revenues, excluding net revenue attributable to certain scheduled subleases and, at the tenant’s option, reimbursed cost revenue, for the trailing five calendar-year period by 1.4%).

As of March 31, 2021, total annual cash rent under the MGM-MGP Master Lease was $827.8 million. In connection with the commencement of the sixth lease year on April 1, 2021, and the corresponding 2.0% fixed annual rent escalator that went into effect on such date, the base rent under the MGM-MGP Master Lease increased to $764.9 million, resulting in total annual rent under the MGM-MGP Master Lease of $842.8 million.

Straight-line rental revenues from the MGM-MGP Master Lease, which includes lease incentive asset amortization, were $188.3 million and $203.5 million for the three months ended March 31, 2021 and 2020, respectively. The Company also recognized revenue related to ground lease and other of $6.0 million for both the three months ended March 31, 2021 and 2020.

Under the MGM-MGP Master Lease, future non-cancelable minimum cash rental payments, which are the payments under the initial 10-year term through April 30, 2026 and do not include the four five-year renewal options and, with respect to MGM National Harbor, through August 31, 2024, are as follows as of March 31, 2021:

Year ending December 31,	(in thousands)
2021 (excluding the three months ended March 31, 2021)	$	632,071
2022	784,336
2023	764,861
2024	733,161
2025	669,761
Thereafter	223,254
Total	$	3,807,444

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NOTE 6 — DEBT

Debt consists of the following:

	March 31,		December 31,
	2021		2020
	(in thousands)
Senior secured revolving credit facility	$	500	$	10,000
5.625% senior notes, due 2024	1,050,000		1,050,000
4.625% senior notes, due 2025	800,000		800,000
4.50% senior notes, due 2026	500,000		500,000
5.75% senior notes, due 2027	750,000		750,000
4.50% senior notes, due 2028	350,000		350,000
3.875% senior notes, due 2029	750,000		750,000
	4,200,500		4,210,000
Less: Unamortized discount and debt issuance costs	(39,061)		(41,041)
	$	4,161,439	$	4,168,959

Operating Partnership credit agreement and bridge facility. At March 31, 2021, the Operating Partnership senior secured credit facility consisted of a $1.4 billion revolving credit facility. At March 31, 2021, the interest rate on the revolving credit facility was 4.00%. The Operating Partnership’s senior credit facility limits the amount of letters of credit that can be issued to $75 million. No letters of credit were outstanding under the Operating Partnership senior secured credit facility at March 31, 2021. The Operating Partnership was in compliance with its financial covenants at March 31, 2021.

Refer to Note 7 for further discussion of the Company’s interest rate swap agreements.

Fair value of debt. The estimated fair value of the Operating Partnership’s debt was $4.4 billion at March 31, 2021 and $4.5 billion at December 31, 2020. Fair value was estimated using quoted market prices for the Operating Partnership’s senior notes and senior secured credit facility.

NOTE 7 — DERIVATIVES AND HEDGING ACTIVITIES

The Operating Partnership uses derivative instruments to mitigate the effects of interest rate volatility inherent in its variable rate senior credit facility and forecasted debt issuances for the duration and amount of its interest rate swap agreements, which such variable rate could unfavorably impact future earnings and forecasted cash flows. The Operating Partnership and the Company do not use derivative instruments for speculative or trading purposes.

The interest rate swaps as of March 31, 2021 are summarized in the table below.

	Notional Amount		Weighted Average Fixed Rate		Fair Value Liability		Effective Date	Maturity Date
	(in thousands, except percentages)
Derivatives designated as hedges:
	$	900,000	1.801	%	$	(29,170)	November 30, 2021	December 31, 2024
	$	900,000			$	(29,170)
Derivatives not designated as hedges:
	$	1,200,000	1.844	%	$	(13,879)	May 3, 2017	November 30, 2021
	300,000		1.158	%	(6,145)		September 6, 2019	December 31, 2024
	400,000		2.252	%	(22,710)		October 1, 2019	December 31, 2029
	$	1,900,000			$	(42,734)
					$	(71,904)

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The interest rate swaps as of December 31, 2020 are summarized in the table below.

	Notional Amount		Weighted Average Fixed Rate		Fair Value Liability		Effective Date	Maturity Date
	(in thousands, except percentages)
Derivatives designated as hedges:
	$	900,000	1.801	%	$	(41,131)	November 30, 2021	December 31, 2024
	$	900,000			$	(41,131)
Derivatives not designated as hedges:
	$	1,200,000	1.844	%	$	(18,889)	May 3, 2017	November 30, 2021
	300,000		1.158	%	(10,451)		September 6, 2019	December 31, 2024
	400,000		2.252	%	(48,453)		October 1, 2019	December 31, 2029
	$	1,900,000			$	(77,793)
					$	(118,924)

As of March 31, 2021 and December 31, 2020, the Operating Partnership’s interest rate swaps that are in a liability position are recorded within “Accounts payable, accrued expenses, and other liabilities”.

NOTE 8 — SHAREHOLDERS’ EQUITY AND PARTNERS’ CAPITAL

MGP shareholders

Issuance of Class A shares - March 2021. On March 15, 2021, the Company completed an offering of 21.9 million Class A shares in a registered public offering for net proceeds of approximately $676.0 million.

Operating Partnership capital

Proceeds from the issuance of Class A shares by MGP - March 2021. On March 15, 2021, in connection with the Company’s registered offering of Class A shares for net proceeds of approximately $676.0 million, such proceeds were used in connection with satisfying the Company’s obligations under the notice of redemption of Operating Partnership units from MGM, discussed below.

Redemption of Operating Partnership units - March 2021. In March 2021, certain subsidiaries of MGM delivered a notice of redemption to the Company covering approximately 37.1 million Operating Partnership units that they held in accordance with the terms of the Operating Partnership’s partnership agreement. In accordance with the terms of such agreement, upon receipt of the notice of redemption, the Company formed a conflicts committee to determine the mix of consideration that it would provide for the Operating Partnership units. The conflicts committee determined that the Company would redeem approximately 15.3 million Operating Partnership units for cash on March 12, 2021 (with such Operating Partnership units retired upon redemption) and would satisfy its remaining obligation under that notice covering the remaining 21.9 million Operating Partnership units using the proceeds, net of underwriters’ discount, from an offering of MGP’s Class A shares on March 15, 2021, for aggregate cash proceeds paid of approximately $1.2 billion. As a result of these collective transactions, MGP’s indirect ownership percentage in the Operating Partnership increased from 47.0% to 57.9%.

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Accumulated Other Comprehensive Loss. Comprehensive income (loss) includes net income (loss) and all other non-shareholder changes in equity, or other comprehensive income (loss). Elements of the Company’s accumulated other comprehensive loss are reported in the accompanying condensed consolidated statement of shareholders’ equity. The following table summarizes the changes in accumulated other comprehensive loss by component:

	Cash Flow Hedges		Other		Total
	(in thousands)
Balance at December 31, 2020	$	(40,063)	$	(11,134)	$	(51,197)
Other comprehensive income before reclassifications	11,961		—		11,961
Amounts reclassified from accumulated other comprehensive loss to interest expense	4,618		—		4,618
Other comprehensive income	16,579		—		16,579
Other changes in accumulated other comprehensive loss:
Issuance of Class A shares	—		(3,693)		(3,693)
Redemption of Operating Partnership Units	—		(6,860)		(6,860)
Other	—		(2)		(2)
Changes in accumulated other comprehensive loss:	16,579		(10,555)		6,024
Less: Other comprehensive income attributable to noncontrolling interest	(8,380)		—		(8,380)
Balance at March 31, 2021	$	(31,864)	$	(21,689)	$	(53,553)

MGP dividends and Operating Partnership distributions. The Operating Partnership declares and pays distributions. MGP pays its dividends with the receipt of its share of the Operating Partnership’s distributions.

On April 15, 2021, the Company paid a dividend of $0.4950 per Class A share upon receipt of its share of the Operating Partnership’s distribution of $0.4950 per unit made the same day.

NOTE 9 — EARNINGS PER CLASS A SHARE

The table below provides earnings and the number of Class A shares used in the computations of “basic” earnings per share, which utilizes the weighted-average number of Class A shares outstanding without regard to dilutive potential Class A shares, and “diluted” earnings per share, which includes all such shares. Diluted earnings per Class A share does not assume conversion of the Operating Partnership units held by MGM as such conversion would be antidilutive. Earnings per share has not been presented for the Class B shareholder as the Class B share is not entitled to any economic rights in the Company.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to Class A shares - basic and diluted	$	59,598	$	(49,748)
Denominator:
Weighted average Class A shares outstanding — basic (1)	135,709		123,259
Effect of dilutive shares for diluted net income per Class A share (2)	227		—
Weighted average Class A shares outstanding — diluted (1)	135,936		123,259

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

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NOTE 10 — EARNINGS PER OPERATING PARTNERSHIP UNIT

The table below provides earnings and the number of Operating Partnership units used in the computations of “basic” earnings per Operating Partnership unit, which utilizes the weighted-average number of Operating Partnership units outstanding without regard to dilutive potential Operating Partnership units, and “diluted” earnings per Operating Partnership units, which includes all such Operating Partnership units.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to unitholders - basic and diluted	$	115,409	$	(125,322)
Denominator:
Weighted average Operating Partnership units outstanding — basic (1)	276,692		324,310
Effect of dilutive shares for diluted net income per Operating Partnership unit (2)	227		—
Weighted average Operating Partnership units outstanding — diluted (1)	276,919		324,310

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

NOTE 11 — COMMITMENTS AND CONTINGENCIES

Litigation. In the ordinary course of business, from time to time, the Company expects to be subject to legal claims and administrative proceedings, none of which are currently outstanding, which the Company believes could have, individually or in the aggregate, a material adverse effect on its business, financial position, results of operations, or cash flows.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This management’s discussion and analysis of financial condition and results of operations contains forward-looking statements that involve risks and uncertainties. Please see “Forward-Looking Statements” for a discussion of the uncertainties, risks, and assumptions that may cause our actual results to differ materially from those discussed in the forward-looking statements.

This discussion should be read in conjunction with our historical financial statements and related notes thereto and the other disclosures contained elsewhere in this quarterly report on Form 10-Q, and the audited consolidated financial statements and notes for the fiscal year ended December 31, 2020, which were included in our annual report on Form 10-K, filed with the SEC on February 23, 2021.

Executive Overview

MGP is one of the leading publicly traded REITs engaged in the acquisition, ownership and leasing of large-scale destination entertainment and leisure resorts, whose tenant generally offers diverse amenities including casino gaming, hotel, convention, dining, entertainment and retail amenities.

MGP is a limited liability company that was formed in Delaware in October 2015. MGP conducts its operations through the Operating Partnership, a Delaware limited partnership formed by MGM in January 2016, that became a subsidiary of MGP in April 2016. We elected to be taxed as a real estate investment trust (“REIT”) for U.S. federal income tax purposes commencing with our taxable year ended December 31, 2016.

As of March 31, 2021, we generate all of our revenues by leasing our real estate properties through a wholly owned subsidiary of the Operating Partnership to a subsidiary of MGM pursuant to the MGM-MGP Master Lease which requires the tenant to pay substantially all costs associated with each property, including real estate taxes, ground lease rent, insurance, utilities and routine maintenance, in addition to the base rent and the percentage rent, each as described below. The lease has an initial lease term of ten years that began on April 25, 2016 with the potential to extend the term for four additional five-year terms thereafter at the option of the tenant (other than with respect to MGM National Harbor, whose initial lease term ends on August 31, 2024; refer to Note 5 for further detail of the lease term). Additionally, the lease provides MGP with a right of first offer with respect to MGM Springfield and with respect to any future gaming development by MGM on the undeveloped land adjacent to Empire City, which MGP may exercise should MGM elect to sell either property in the future.

Following the formation transaction in February 2020 of the MGP BREIT Venture, owned 50.1% by the Operating Partnership and 49.9% by a subsidiary of BREIT, MGP BREIT Venture owns the real estate assets of MGM Grand Las Vegas and Mandalay Bay and leases such real estate properties back to a wholly owned subsidiary of MGM under the MGP BREIT Venture lease. The lease provides for a term of thirty years with two ten-year renewal options.

As of March 31, 2021, our portfolio, including properties owned by the MGP BREIT Venture, includes seven large-scale entertainment and gaming-related properties in Las Vegas: Mandalay Bay, MGM Grand Las Vegas, The Mirage, Park MGM, New York-New York, Luxor and Excalibur, and The Park, a dining and entertainment district located between New York-New York and Park MGM. Outside of Las Vegas, we also own five market-leading casino resort properties: MGM Grand Detroit in Detroit, Michigan, Beau Rivage and Gold Strike Tunica, both of which are located in Mississippi, Borgata in Atlantic City, New Jersey, and MGM National Harbor in Prince George’s County, Maryland. We also own the casino properties of MGM Northfield Park in Northfield, Ohio and Empire City in Yonkers, New York.

Additionally, we expect to grow our portfolio through acquisitions with third parties and with MGM. In pursuing external growth initiatives, we will generally seek to acquire properties that can generate stable rental revenue through long-term, triple-net leases with tenants with established operating histories, and we will consider various factors when evaluating acquisitions.

In March 2021, certain subsidiaries of MGM delivered a notice of redemption to us covering approximately 37.1 million Operating Partnership units that they held which was satisfied with aggregate cash proceeds of approximately $1.2 billion using cash on hand together with the proceeds from the issuance of Class A shares.

COVID-19 Update

The COVID-19 pandemic has not had a material impact on our operations; however, we cannot estimate the duration of the pandemic and potential impact on our business if our properties will be required to close again, or if the tenant (or the

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guarantor) is otherwise unable or unwilling to make rental payments. For further information regarding the potential impact of COVID-19 on our operations, refer to “Liquidity and Capital Resources” below.

Combined Results of Operations for MGP and the Operating Partnership

Overview

The following table summarizes our financial results for the three months ended March 31, 2021 and March 31, 2020:

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Total Revenues	$	194,342	$	209,570
Total Expenses	68,359		268,527
Net income (loss)	115,409		(125,322)
Net income (loss) attributable to Class A shareholders	59,598		(49,748)

Revenues

Rental revenue. Rental revenues, including ground lease and other, for the three months ended March 31, 2021 and 2020 were $194.3 million and $209.6 million, respectively. The $15.2 million, or 7.3%, decrease for the quarterly period was due primarily to a decrease in rental revenues as a result of the removal of Mandalay Bay from the MGM-MGP Master Lease relating to the MGP BREIT Venture Transaction in February 2020.

Expenses

Depreciation. Depreciation expense was $57.9 million and $62.0 million for the three months ended March 31, 2021 and 2020, respectively. The $4.1 million, or 6.6%, decrease for the quarterly period was primarily due to the contribution of Mandalay Bay to the MGP BREIT Venture in February 2020.

Property transactions, net. Property transactions, net were $0.8 million for the three month period ended March 31, 2021 compared to $195.1 million for the three month period ended March 31, 2020. The prior quarterly period included the difference between the carrying value of the Mandalay Bay real estate assets and the net consideration received that resulted in a loss on sale of the Mandalay Bay real estate assets of $193.1 million in February 2020.

Ground lease expense. Ground lease expense was $5.9 million for each of the three months ended March 31, 2021 and 2020.

Acquisition-related expenses. Acquisition-related expenses were $0.6 million for the three months ended March 31, 2020, which related to the MGP BREIT Venture Transaction. There were no acquisition-related expenses for the three months ended March 31, 2021.

General and administrative expenses. General and administrative expenses were $3.7 million and $4.9 million for the three months ended March 31, 2021 and 2020, respectively. The $1.2 million, or 25.1%, decrease for the quarter-to-date period was primarily due to the three months ended March 31, 2020 containing costs incurred for transactions that did not sign or close.

Other Expenses

Income from unconsolidated affiliate. Income from unconsolidated affiliate was $25.5 million and $13.4 million for the three months ended March 31, 2021 and 2020, respectively, and is attributable to income from our investment in MGP BREIT Venture. The $12.1 million, or 90.7%, increase primarily reflects the timing of the MGP BREIT Venture formation in February 2020 and, accordingly, the current year quarter having a full quarter of income attributable to the venture.

Other expenses, excluding income from unconsolidated affiliate, were $33.3 million and $78.6 million for the three months ended March 31, 2021 and 2020, respectively. The $45.3 million, or 57.7%, decrease for the quarterly period was primarily related to the $35.1 million gain on unhedged interest rate swaps, net for the three months ended March 31, 2021 compared to the $12.1 million loss on unhedged interest rate swaps, net, for the three months ended March 31, 2020, in addition

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to the three months ended March 31, 2020 containing a $18.1 million loss on retirement of debt relating to our repayment of the term loan A and term loan B facilities. This was partially offset by an increase in interest expense due to an increase in debt period over period relating to the issuance of the $800 million 4.625% senior notes due 2025 in June 2020 and of the issuance of $750 million 3.875% senior notes due 2029 in November 2020.

Provision for Income Taxes

Our effective tax rate was a provision of 2.4% on income before income taxes and a provision of 0.9% on loss before income taxes for the three months ended March 31, 2021 and 2020, respectively. The effective tax rate in the three months ended March 31, 2020 was impacted by the loss resulting from the MGP BREIT Venture Transaction, which provides no federal or state income tax benefit due to our REIT status. Refer to Note 2 of the accompanying financial statements for additional discussion regarding income taxes.

Non-GAAP Measures

Funds From Operations (“FFO”) is net income (computed in accordance with U.S. GAAP), excluding gains and losses from sales or disposals of property (presented as property transactions, net), plus depreciation, as defined by the National Association of Real Estate Investment Trusts, plus our share of depreciation of our unconsolidated affiliate.

Adjusted Funds From Operations (“AFFO”) is FFO as adjusted for amortization of financing costs and cash flow hedges; our share of amortization of financing costs of our unconsolidated affiliate; non-cash compensation expense; straight-line rental revenue (which is defined as the difference between contractual rent and cash rent payments, excluding lease incentive asset amortization); our share of straight-line rental revenues of our unconsolidated affiliate; amortization of lease incentive asset and deferred revenue relating to non-normal tenant improvements; acquisition-related expenses; non-cash ground lease rent, net; other expenses; (gain) loss on unhedged interest rate swaps, net; our share of provision for income taxes of unconsolidated affiliate; and provision for income taxes.

Adjusted EBITDA is net income (computed in accordance with U.S. GAAP) as adjusted for gains and losses from sales or disposals of property (presented as property transactions, net); depreciation; our share of depreciation of our unconsolidated affiliate; amortization of financing costs and cash flow hedges; our share of amortization of financing costs of our unconsolidated affiliate; non-cash compensation expense; straight-line rental revenue; our share of straight-line rental revenues of our unconsolidated affiliate; amortization of lease incentive asset and deferred revenue relating to non-normal tenant improvements; acquisition-related expenses; non-cash ground lease rent, net; other expenses; (gain) loss on unhedged interest rate swaps, net; our share of provision for income taxes of unconsolidated affiliate; interest income; interest expense (including amortization of financing costs and cash flow hedges); our share of interest expense (including amortization of financing costs) of our unconsolidated affiliate; and provision for income taxes.

FFO, FFO per unit, AFFO, AFFO per unit and Adjusted EBITDA are supplemental performance measures that have not been prepared in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) that management believes are useful to investors in comparing operating and financial results between periods. Management believes that this is especially true since these measures exclude depreciation expense and management believes that real estate values fluctuate based on market conditions rather than depreciating in value ratably on a straight-line basis over time. The Company believes such a presentation also provides investors with a meaningful measure of the Company’s operating results in comparison to the operating results of other REITs. Adjusted EBITDA is useful to investors to further supplement AFFO and FFO and to provide investors a performance metric which excludes interest expense. In addition to non-cash items, the Company adjusts AFFO and Adjusted EBITDA for acquisition-related expenses. While we do not label these expenses as non-recurring, infrequent or unusual, management believes that it is helpful to adjust for these expenses when they do occur to allow for comparability of results between periods because each acquisition is (and will be) of varying size and complexity and may involve different types of expenses depending on the type of property being acquired and from whom.

FFO, FFO per unit, AFFO, AFFO per unit and Adjusted EBITDA do not represent cash flow from operations as defined by U.S. GAAP, should not be considered as an alternative to net income as defined by U.S. GAAP and are not indicative of cash available to fund all cash flow needs. Investors are also cautioned that FFO, FFO per unit, AFFO, AFFO per unit and Adjusted EBITDA as presented, may not be comparable to similarly titled measures reported by other REITs due to the fact that not all real estate companies use the same definitions.        

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The following table provides a reconciliation of the Company’s consolidated net income to FFO, AFFO and Adjusted EBITDA:

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Net income (loss)	$	115,409	$	(125,322)
Depreciation (1)	57,937		62,047
Share of depreciation of unconsolidated affiliate	10,477		5,319
Property transactions, net	843		195,056
Funds From Operations	184,666		137,100
Amortization of financing costs and cash flow hedges	7,481		3,264
Share of amortization of financing costs of unconsolidated affiliate	63		33
Non-cash compensation expense	852		754
Straight-line rental revenues, excluding lease incentive asset	13,633		10,781
Share of straight-line rental revenues of unconsolidated affiliate	(12,623)		(6,352)
Amortization of lease incentive asset and deferred revenue on non-normal tenant improvements	4,627		4,627
Acquisition-related expenses	—		622
Non-cash ground lease rent, net	259		260
Other expenses	197		18,368
(Gain) loss on unhedged interest rate swaps, net	(35,059)		12,120
Provision for income taxes	2,792		1,133
Share of provision for income taxes of unconsolidated affiliate	—		47
Adjusted Funds From Operations	166,888		182,757
Interest income	(317)		(1,091)
Interest expense	68,446		49,198
Share of interest expense of unconsolidated affiliate	13,432		6,524
Amortization of financing costs and cash flow hedges	(7,481)		(3,264)
Share of amortization of financing costs of unconsolidated affiliate	(63)		(33)
Adjusted EBITDA	$	240,905	$	234,091

(1) Includes depreciation on Mandalay Bay real estate assets for the period of January 1, 2020 through February 14, 2020.

Guarantor Financial Information

As of March 31, 2021, all of our indebtedness is held by the Operating Partnership and MGP does not guarantee any of the Operating Partnership’s indebtedness. The Operating Partnership’s principal debt arrangements are guaranteed by each of its wholly owned subsidiaries except for MGP JV INVESTCO 1 LLC, the entity holding the 50.1% interest in the MGP BREIT Venture, and, with respect to the Operating Partnership’s senior notes, MGP Finance Co-Issuer, Inc., the co-issuer of the senior notes. The guarantees provided by the subsidiary guarantors rank senior in right of payment to any future subordinated debt of ours or such subsidiary guarantors, junior to any secured indebtedness to the extent of the value of the assets securing such debt and effectively subordinated to any indebtedness and other obligations of our subsidiaries that do not guaranty the principal indebtedness. In addition, the obligations of each subsidiary guarantor under its guarantee is limited so as not to constitute a fraudulent conveyance under applicable law, which may eliminate the subsidiary guarantor’s obligations or reduce such obligations to an amount that effectively makes the subsidiary guarantee lack value.

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The summarized financial information of the Operating Partnership and its guarantor subsidiaries, on a combined basis, is presented below:

	March 31, 2021		December 31, 2020
Balance Sheet	(in thousands)
Real estate investments, net	$	8,251,957	$	8,310,737
Other assets	989,878		1,479,503
Debt, net	4,161,439		4,168,959
Other liabilities	810,955		840,605

	Three Months Ended
	March 31, 2021
Income Statement	(in thousands)
Total revenues	$	194,342
Net income	89,924

Liquidity and Capital Resources

Rental revenues received under the MGM-MGP Master Lease and distributions from the MGP BREIT Venture are our primary sources of cash from operations and are dependent on the tenant’s ability to pay rent and the MGP BREIT Venture’s ability to pay distributions. As of the date of this filing, all of the properties in our portfolio, including those held by the MGP BREIT Venture, that had temporarily closed during 2020 to the public pursuant to state and local government requirements as a result of the unprecedented public health crisis resulting from the COVID-19 pandemic, have re-opened without certain amenities and subject to certain occupancy limitations, which vary by jurisdiction and with further temporary re-closures and re-openings occurring for the Company’s properties or portions thereof in the first quarter of 2021. In the latter part of the first quarter of 2021, certain jurisdictions have loosened prior operating restrictions, including increased capacity limits applicable to restaurants and conventions as well as allowing limited entertainment events to resume, subject to continued COVID-19 safety measures.

Although we are continuing to see reduced operating restrictions at our properties, such properties may be subject to temporary, complete or partial shutdowns in the future due to COVID-19 related concerns. At this time, we cannot predict whether jurisdictions, states or the federal government will adopt similar or more restrictive measures in the future than in the past, including stay-at-home orders or the temporary closure of all or a portion of our tenant’s properties. Accordingly, although our properties have re-opened, certain of our properties are still generating revenues for the tenant that are significantly lower than historical results which we expect to continue through 2021 and potentially thereafter.

Despite the aforementioned uncertainties and as it relates to the impact of the COVID-19 pandemic, our and MGP BREIT Venture’s tenants continue to make rental payments in full and on time and we believe the tenants’ (and the guarantor’s) liquidity positions are sufficient to cover their expected rental obligations for the foreseeable future. Accordingly, while we do not anticipate an impact on our operations as a result of the COVID-19 pandemic, we cannot estimate the duration of the pandemic and potential impact on our business if our re-opened properties will be required to close again, or if the tenants (or guarantor) are otherwise unable or unwilling to make rental payments.

All of our indebtedness is held by the Operating Partnership and MGP does not guarantee any of the Operating Partnership's indebtedness. MGP's principal funding requirement is the payment of dividends and distributions on its Class A shares, and its principal source of funding for these dividends and distributions is the distributions it receives from the Operating Partnership. MGP's liquidity is therefore dependent upon the Operating Partnership's ability to make sufficient distributions to it, which distributions are primarily funded by rental payments received from the tenant and distributions from the MGP BREIT Venture. The Operating Partnership's primary uses of cash include payment of operating expenses, debt service, and distributions to MGP and MGM. We believe that the Operating Partnership currently has sufficient liquidity to satisfy all of its commitments, including its distributions to MGP, and in turn, that we currently have sufficient liquidity to satisfy all our commitments in the form of $143.2 million in cash and cash equivalents held by the Operating Partnership as of March 31, 2021, expected cash flows from operations, expected cash distributions from the MGP BREIT Venture, and $1.3 billion of borrowing capacity under the Operating Partnership’s revolving credit facility as of March 31, 2021. See Note 6 to the

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accompanying financial statements for a description of our principal debt arrangements and Note 4 to the accompanying financial statements for a description of our excess cash flow guarantee relating to the MGP BREIT Venture.

Summary of Cash Flows

Net cash provided by operating activities for the three months ended March 31, 2021 was $168.1 million compared to net cash provided by operating activities of $175.9 million for the three months ended March 31, 2020. The change was primarily due to the 2% fixed annual rent escalator at the beginning of the fifth lease year on April 1, 2020, which increased the annual cash rental payments by $14.7 million, partially offset by the decrease in annual cash rental payments of $133 million as a result of the removal of Mandalay Bay from the MGM-MGP Master Lease in February 2020, and due to an increase in distributions from our unconsolidated affiliate which is attributable to the timing of the MGP BREIT Venture formation in February 2020, partially offset by the March 2021 distribution remaining at the MGP BREIT Venture as the excess cash flow guarantee had not yet been executed as of March 31, 2021. Refer to Note 4 for discussion on the excess cash flow guarantee.

There was no cash provided by investing activities for the three months ended March 31, 2021. There was $58.1 million of net cash provided by investing activities for the three months ended March 31, 2020 which related to the net cash proceeds from the MGP BREIT Venture Transaction.

Net cash used in financing activities for the three months ended March 31, 2021 was $651.2 million, which reflects our payments of $136.5 million of distributions and dividends, $9.5 million of repayments under the revolving credit facility, and the $1.2 billion of cash used to satisfy the notice of redemption of 37.1 million Operating Partnership units held by MGM, which was funded with cash on hand and with proceeds from the issuance of 21.9 million Class A shares for $676.0 million.

Net cash provided by financing activities for the three months ended March 31, 2020 was $1.3 billion, which was primarily attributable to our $1.35 billion draw on our revolving credit facility and the proceeds of $150.0 million from the issuance of Class A shares to BREIT. This was offset by the repayment of the Operating Partnership’s $1.3 billion outstanding term loan B facility with the proceeds of the bridge loan facility, which was then assumed by the MGP BREIT Venture; the repayment of the Operating Partnership’s $399 million outstanding term loan A facility with the $374.6 million of net proceeds from the settlement of forward equity agreements; and payments of $147.3 million of distributions and dividends.

Dividends and Distributions

The following table presents the distributions declared and paid by the Operating Partnership and the dividends declared by MGP within the three months ended March 31, 2021 and March 31, 2020. MGP pays its dividends with the receipt of its share of the Operating Partnership’s distributions.

Declaration Date	Record Date	Distribution/ Dividend Per Unit/ Share		Payment Date
2021
March 15, 2021	March 31, 2021	$	0.4950	April 15, 2021
2020
March 13, 2020	March 31, 2020	$	0.4750	April 15, 2020

In order to maintain REIT status, U.S. federal income tax laws generally require that a REIT distribute annually at least 90% of its REIT taxable income, without regard to the deduction for dividends paid and excluding net capital gains, and that it pay taxes at regular corporate income tax rates to the extent that it annually distributes less than 100% of its taxable income. Our annual distribution will not be less than 90% of our REIT taxable income on an annual basis, determined without regard to the dividends paid deduction and excluding any net capital gains.

Application of Critical Accounting Policies and Estimates

A complete discussion of our critical accounting policies and estimates is included in our Form 10-K for the fiscal year ended December 31, 2020. There have been no significant changes in our critical accounting policies and estimates since year end.

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Market Risk

Our primary market risk exposure is interest rate risk with respect to our existing variable rate indebtedness. An increase in interest rates could make the financing of any acquisition by us more costly as well as increase the costs of our variable rate debt obligations. Rising interest rates could also limit our ability to refinance our debt when it matures or cause us to pay higher interest rates upon refinancing and increase interest expense on refinanced indebtedness.

To manage our exposure to changes in LIBOR rates, as of March 31, 2021, we have effective interest rate swap agreements where the Company pays a weighted average fixed rate of 1.821% on a total notional amount of $1.9 billion. Additionally, we have $900 million of notional amount of forward starting swaps that are not currently effective.

We do not hold or issue financial instruments for trading purposes and do not enter into derivative transactions that would be considered speculative positions. As of March 31, 2021, variable rate borrowings, excluding impact from our swap agreements, represented approximately less than 1% of our total borrowings. Assuming a 100 basis-point increase in LIBOR, our annual interest cost would increase by less than $0.1 million based on gross amounts outstanding at March 31, 2021 and not taking into account the interest rate swap agreements. The following table provides information about the maturities of our debt subject to changes in interest rates, excluding the effect of the interest rate swaps discussed above:

	Debt maturing in																			Fair Value March 31,
	2021		2022		2023			2024			2025			Thereafter			Total			2021
	(in millions)
Fixed rate	$	—	$	—	$	—		$	1,050.0		$	800.0		$	2,350.0		$	4,200.0		$	4,409.9
Average interest rate	N/A		N/A		N/A			5.625		%	4.625		%	4.699		%	4.917		%
Variable rate	$	—	$	—	$	0.5		$	—		$	—		$	—		$	0.5		$	0.5
Average interest rate	N/A		N/A		4.000		%	N/A			N/A			N/A			4.000		%

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Cautionary Statement Concerning Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. In particular, statements pertaining to our capital resources and the amount and frequency of future distributions contain forward-looking statements. You can identify forward-looking statements by the use of forward-looking terminology such as “believes,” “expects,” “could,” “may,” “will,” “should,” “seeks,” “likely,” “intends,” “plans,” “pro forma,” “projects,” “estimates” or “anticipates” or the negative of these words and phrases or similar words or phrases that are predictions of or indicate future events or trends and that do not relate solely to historical matters. You can also identify forward-looking statements by discussions of strategy, plans or intentions. Examples of forward-looking statements include, but are not limited to, statements we make regarding the anticipated degree to which the COVID-19 pandemic will impact our results of operations, our expectations regarding our future liquidity position and the liquidity position of our tenant (and guarantor), the timing and amount of any future dividends and our ability to further grow our portfolio.

Forward-looking statements involve numerous risks and uncertainties and you should not rely on them as predictions of future events. Forward-looking statements depend on assumptions, data or methods that may be incorrect or imprecise and we may not be able to realize them. We do not guarantee that the transactions and events described will happen as described (or that they will happen at all). The following factors, among others, could cause actual results and future events to differ materially from those set forth or contemplated in the forward-looking statements:

•The fact that as a result of the COVID-19 pandemic, our properties are continuing to operate without certain amenities and subject to certain occupancy limitations, and we are unable to predict the length of time it will take for the properties to return to normal operations for the tenant.

•The fact that future increases in reported COVID-19 cases in the jurisdictions in which our tenant operates may result in such jurisdictions adopting policies and procedures further restricting the amenities that can be offered at our properties or require those properties to temporarily close to the public.

•We are dependent on MGM (including its subsidiaries) unless and until we substantially diversify our portfolio, and an event that has a significant adverse effect on MGM’s business, financial position or results of operations (including the continuing effects of the COVID-19 pandemic) could have a material adverse effect on our business, financial position, results of operations, or cash flows.

•We depend on our properties leased to MGM for substantially all of our anticipated cash flows (including the properties held by the MGP BREIT Venture).

•We, or the MGP BREIT Venture, as applicable, may not be able to re-lease the properties following the expiration or termination of the lease.

•MGP’s sole material assets are Operating Partnership units representing 57.9% of the ownership interests in the Operating Partnership, as of March 31, 2021, over which we have operating control through our ownership of its general partner, and our ownership interest in the general partner of the Operating Partnership.

•Our ability to sell our properties is restricted by the terms of the leases or may otherwise be limited.

•We will have future capital needs and may not be able to obtain additional financing on acceptable terms.

•Covenants in our debt agreements may limit our operational flexibility, and a covenant breach or default could materially adversely affect our business, financial position, results of operations, or cash flows.

•Covenants in the debt agreements at the MGP BREIT Venture may limit its ability to pay distributions to us, which could materially affect our business, financial position, results of operations, or cash flows.

•Rising expenses could reduce cash flow and funds available for future acquisitions and distributions.

•We are dependent on the gaming industry and may be susceptible to the risks associated with it, which could materially adversely affect our business, financial position, results of operations or cash flows.

•Because a significant number of our major gaming resorts are concentrated on the Las Vegas Strip, we are subject to greater risks than a company that is more geographically diversified.

•Our pursuit of investments in, and acquisitions or development of, additional properties (including our rights of first offer with respect to MGM Springfield and with respect to any future gaming developments by MGM on the undeveloped land adjacent to Empire City) may be unsuccessful or fail to meet our expectations.

•We may face extensive regulation from gaming and other regulatory authorities, and our operating agreement provides that any of our shares held by investors who are found to be unsuitable by state gaming regulatory authorities are subject to redemption.

•Required regulatory approvals can delay or prohibit future leases or transfers of our gaming properties, which could result in periods in which we are unable to receive rent for such properties.

•Net leases may not result in fair market lease rates over time, which could negatively impact our income and reduce the amount of funds available to make distributions to shareholders.

•Our dividend yield could be reduced if we were to sell any of our properties in the future.

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•There can be no assurance that we will be able to make distributions to our Operating Partnership unitholders and Class A shareholders or maintain our anticipated level of distributions over time.

•An increase in market interest rates could increase our interest costs on existing and future debt and could adversely affect the price of our Class A shares.

•We are controlled by MGM, whose interests in our business may conflict with ours or yours.

•We are dependent on MGM for the provision of administration services to our operations and assets.

•MGM’s historical results may not be a reliable indicator of its future results.

•Our operating agreement contains provisions that reduce or eliminate duties (including fiduciary duties) of our directors, officers and others.

•If MGM engages in the same type of business we conduct, our ability to successfully operate and expand our business may be hampered.

•The MGM-MGP Master Lease and other agreements governing our relationship with MGM were not negotiated on an arm’s-length basis and the terms of those agreements may be less favorable to us than they might otherwise have been in an arm’s-length transaction.

•In the event of a bankruptcy of the MGM-MGP Master Lease’s tenant, a bankruptcy court may determine that the MGM-MGP Master Lease is not a single lease but rather multiple severable leases, each of which can be assumed or rejected independently, in which case underperforming leases related to properties we own that are subject to the MGM-MGP Master Lease could be rejected by the tenant while tenant-favorable leases are allowed to remain in place.

•MGM may undergo a change of control without the consent of us or of our shareholders.

•If MGP fails to remain qualified to be taxed as a REIT, it will be subject to U.S. federal income tax as a regular corporation and could face a substantial tax liability, which would have an adverse effect on our business, financial position, results of operations, or cash flows.

•Legislative or other actions affecting REITs could have a negative effect on us.

•The anticipated benefits of our prior, anticipated and future investments and acquisitions, including our investment in MGP BREIT Venture, may not be realized fully and may take longer to realize than expected.

While forward-looking statements reflect our good-faith beliefs, they are not guarantees of future performance. We disclaim any obligation to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors of new information, data or methods, future events or other changes. For a further discussion of these and other factors that could impact our future results, performance or transactions, see the section entitled “Risk Factors.”

Any forward-looking statement made by us in this Form 10-Q speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law. If we update one or more forward-looking statements, no inference should be made that we will make additional updates with respect to those or other forward-looking statements.

You should also be aware that while we from time to time communicate with securities analysts, we do not disclose to them any material non-public information, internal forecasts or other confidential business information. Therefore, you should not assume that we agree with any statement or report issued by any analyst, irrespective of the content of the statement or report. To the extent that reports issued by securities analysts contain projections, forecasts or opinions, those reports are not our responsibility and are not endorsed by us.

Item 3.    Quantitative and Qualitative Disclosures about Market Risk

We incorporate by reference the information appearing under “Market Risk” in Part I, Item 2 of this Form 10-Q.

Item 4.    Controls and Procedures

Controls and Procedures with respect to MGP

Our Chief Executive Officer (principal executive officer) and Chief Financial Officer (principal financial officer) have concluded that our disclosure controls and procedures (as such term is defined in Rules 13(a)-15(e) and 15d-15(e) under the Exchange Act) were effective as of March 31, 2021 to provide reasonable assurance that information required to be disclosed in the Company’s reports under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC rules and regulations and to provide that such information is accumulated and communicated to management to allow timely decisions regarding required disclosures. This conclusion is based on an evaluation as required by Rule 13a-15(b) under the Exchange Act conducted under the supervision and participation of the principal executive officer and principal financial officer along with company management.

30

Controls and Procedures with respect to the Operating Partnership

In this “Controls and Procedures with respect to the Operating Partnership” section, the terms “we,” “our” and “us” refer to the Operating Partnership together with its consolidated subsidiaries, and “management,” “principal executive officer” and “principal financial officer” refers to the management, principal executive officer and principal financial officer of the Operating Partnership and of the Operating Partnership’s general partner.

Our Chief Executive Officer (principal executive officer) and Chief Financial Officer (principal financial officer) have concluded that our disclosure controls and procedures (as such term is defined in Rules 13(a)-15(e) and 15d-15(e) under the Exchange Act) were effective as of March 31, 2021 to provide reasonable assurance that information required to be disclosed in the Company’s reports under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC rules and regulations and to provide that such information is accumulated and communicated to management to allow timely decisions regarding required disclosures. This conclusion is based on an evaluation as required by Rule 13a-15(b) under the Exchange Act conducted under the supervision and participation of the principal executive officer and principal financial officer along with company management.

Changes in Internal Control over Financial Reporting

During the quarter ended March 31, 2021, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Part II.    OTHER INFORMATION

Item 1.    Legal Proceedings

See discussion of legal proceedings in Note 11 in the accompanying consolidated financial statements.

Item 1A. Risk Factors

A description of certain factors that may affect our future results and risk factors is set forth in our Annual Report on Form 10-K for the year ended December 31, 2020. Except as discussed below, there have been no material changes from the risk factors previously disclosed in our 2020 Annual Report on Form 10-K.

Covenants in our debt agreements may limit our operational flexibility, and a covenant breach or default could materially adversely affect our business, financial position or results of operations. The agreements governing our indebtedness contain customary covenants, including restrictions on the Operating Partnership’s ability to grant liens on the Operating Partnership’s assets, incur indebtedness, sell assets, make investments, engage in acquisitions, mergers or consolidations and pay certain distributions and other restricted payments. In addition, the Operating Partnership is required to comply with certain financial covenants. These restrictions may limit our operational flexibility. Covenants that limit our operational flexibility as well as defaults under the Operating Partnership’s debt instruments could have a material adverse effect on our business, financial position or results of operations.

In addition, covenants in the MGP BREIT Venture’s loan agreement may limit its ability to pay distributions to us. In particular, the MGP BREIT Venture loan agreement requires that the tenant EBITDAR to MGP BREIT Venture cash interest ratio is maintained above a specified level. If this ratio is not met for two consecutive fiscal quarters, then the borrowers will be unable to distribute excess cash flows to us unless and until we provide an excess cash flow guarantee (the “ECF Guaranty”). As of December 31, 2020, the ratio was not met for two consecutive quarters and, as a result, in April 2021, the Operating Partnership and an entity affiliated with BREIT each delivered an ECF Guaranty to the lenders covering all distributions since January 1, 2021. The ECF Guaranty provides that the MGP BREIT Venture may distribute an aggregate amount of cash not to exceed 9.9% of the principal amount of the MGP BREIT Venture’s outstanding indebtedness under the loan agreement, after which distributions must remain at the MGP BREIT Venture in a restricted cash account until such time as the tenant EBITDAR to MGP BREIT Venture cash interest ratio is met for two consecutive quarters. In addition, in the event of a default under the loan agreement during this period, we will be required to return our share of amounts distributed to us while the ratio was not met. Any limits on the MGP BREIT Venture’s ability to distribute cash to us, or any requirement for us to return the cash distributed to us from the MGP BREIT Venture during the period of non-compliance, could adversely affect our business, results of operations, or cash flows.

31

Item 2.    Unregistered Sales of Equity Securities and Use of Proceeds

In March 2021, certain subsidiaries of MGM delivered a notice of redemption covering approximately 37.1 million Operating Partnership units that they held in accordance with the terms of the Operating Partnership’s partnership agreement. On March 12, 2021, the Company redeemed approximately 15.3 million Operating Partnership units for cash (with such Operating Partnership units retired upon redemption) and satisfied its remaining obligation under that notice covering the remaining 21.9 million Operating Partnership units on March 15, 2021 using the proceeds, net of underwriters’ discount, from an offering of MGP’s Class A shares for aggregate cash proceeds paid of approximately $1.2 billion.

32

Item 6.    Exhibits

10.1		Omnibus Amendment to Relative Performance Share Units
22.1		Subsidiary Guarantors
31.1		Certification of Chief Executive Officer of MGM Growth Properties LLC pursuant to Rule 13a-14(a) and 15d-14(a) of the Exchange Act, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2		Certification of Chief Executive Officer of MGM Growth Properties Operating Partnership LP pursuant to Rule 13a-14(a) and 15d-14(a) of the Exchange Act, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.3		Certification of Chief Financial Officer of MGM Growth Properties LLC pursuant to Rule 13a-14(a) and15d-14(a) of the Exchange Act, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.4		Certification of Chief Financial Officer of MGM Growth Properties Operating Partnership LP pursuant to Rule 13a-14(a) and 15d-14(a) of the Exchange Act, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1		Certification of Chief Executive Officer of MGM Growth Properties LLC pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*
32.2		Certification of Chief Executive Officer of MGM Growth Properties Operating Partnership LP pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*
32.3		Certification of Chief Financial Officer of MGM Growth Properties LLC pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*
32.4		Certification of Chief Financial Officer of MGM Growth Properties Operating Partnership LP pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*
101.INS		Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH		Inline XBRL Taxonomy Extension Schema Document
101.CAL		Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF		Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB		Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE		Inline XBRL Taxonomy Extension Presentation Linkbase Document
104		The cover page from this Quarterly Report on Form 10-Q for the quarter ended March 31, 2021 has been formatted in Inline XBRL.
*	Exhibits 32.1, 32.2, 32.3 and 32.4 shall not be deemed filed with the SEC, nor shall they be deemed incorporated by reference in any filing with the SEC under the Exchange Act or the Securities Act of 1933, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any filings.

33

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	MGM Growth Properties LLC
Date: April 30, 2021	By:	/s/ JAMES C. STEWART
		James C. Stewart
		Chief Executive Officer (Principal Executive Officer)
Date: April 30, 2021		/s/ ANDY H. CHIEN
		Andy H. Chien
		Chief Financial Officer and Treasurer (Principal Financial and Accounting Officer)

34

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	MGM Growth Properties Operating Partnership LP
	By: MGM Growth Properties OP GP LLC, its general partner
Date: April 30, 2021	By:	/s/ JAMES C. STEWART
		James C. Stewart
		Chief Executive Officer (Principal Executive Officer)
Date: April 30, 2021		/s/ ANDY H. CHIEN
		Andy H. Chien
		Chief Financial Officer and Treasurer (Principal Financial and Accounting Officer)

35

EX-10.1

Exhibit 10.1

MGM GROWTH PROPERTIES LLC

OMNIBUS AMENDMENT TO

PERFORMANCE SHARE UNITS

This Agreement is made by and between MGM Growth Properties LLC, a Delaware limited liability company (the “Company”), and [●] (the “Participant”) with an effective date of [●] (the “Amendment Date”).

RECITALS

A. The Participant has previously received one or more awards of Performance Share Units pursuant to the MGM Growth Properties LLC 2016 Omnibus Incentive Plan (the “Plan”), which provide for vesting based upon the Company’s total shareholder return performance relative to that of a defined comparison group (the “rTSR PSUs”).

B. The Company and the Participant are parties to award agreements (each an “Award Agreement”) evidencing the grant of each of the Participant’s rTSR PSUs.

C. The Company and the Participant desire to amend the term of all outstanding rTSR PSUs currently held by the Participant, and the corresponding Award Agreements, in accordance with the terms and conditions hereof in order to correct an error and clarify an ambiguity in the Award Agreement.

Accordingly, in consideration of the mutual covenants contained herein, the parties agree as follows, each effective as of the Amendment Date:

Capitalized terms not defined herein shall have the meanings ascribed to such terms under the Plan and/or the applicable Award Agreement.

1.The Participant and the Company hereby agree that each of the Award Agreements shall be amended such that (i) if the applicable Award Agreement does not contain a defined term “Vesting Period,” such a defined term shall be deemed added with the definition set forth below, and (ii) if the applicable Award Agreement contains a defined term “Vesting Period,” such term shall be deleted and replaced with the following definition:

“Vesting Period” means the period of time beginning on the Effective Date and ending on third anniversary of the Effective Date.

2.The Participant and the Company hereby agree that first paragraph of Section 3.1(i) of each of the Award Agreements is hereby deleted and replaced with the following (revised language is emphasized):

Subject to Section 3.3 herein, a percentage of the Target Award shall vest at the end of the Vesting Period as set forth in the table below based on the Company’s percentile rank of TSR against the Comparison Group over the Performance Period; provided, however, that, notwithstanding anything herein to the contrary, if the Company’s absolute TSR is negative during the Performance Period, the maximum portion of the Target Award that shall be eligible for vesting in accordance with the following table shall be 100%.

3.The Participant and the Company hereby agree that Section 3.2 of each of the Award Agreements is hereby amended to replace the term “Performance Period” as used therein with the term “Vesting Period”.

4.The Participant and the Company hereby agree that Section 3.3 of each of the Award Agreements is hereby amended to replace the first three instances of the term “Performance Period” therein with the term “Vesting Period”.

5.Except as specifically modified herein, the terms and conditions of the rTSR PSUs and the applicable Award Agreements shall continue in full force and effect.

IN WITNESS WHEREOF, the parties hereto have executed this Performance Share Units Agreement as of the date first written above.

MGM GROWTH PROPERTIES LLC

By:

Name:

Title:

PARTICIPANT

By:

Name:

A-2

EX-22.1

Exhibit 22.1

List of Guarantor Subsidiaries of MGM Growth Properties Operating Partnership LP

The subsidiaries of MGM Growth Properties Operating Partnership LP (the “Operating Partnership”) listed below have fully and unconditionally guaranteed the Operating Partnership’s (i) 5.625% senior notes due 2024, (ii) 4.500% senior notes due 2026, (iii) 5.750% senior notes due 2027, (iv) 4.500% senior notes due 2028, (v) 4.625% senior notes due 2025, and (vi) 3.875% senior notes due 2029 (collectively, the “Notes”), in each case issued by the Operating Partnership and MGP Finance Co-Issuer, Inc. (the “Co-Issuer”). The Operating Partnership and the Co-Issuer are each subsidiaries of MGM Growth Properties LLC, and the Co-Issuer is a wholly owned subsidiary of the Operating Partnership.

Name of Subsidiary	Issuer/Guarantor Status
MGP Finance Co-Issuer, Inc.	(1)
MGP Lessor Holdings, LLC	(2)
MGP Lessor, LLC	(2)
MGP Lessor II, LLC	(2)
MGP Yonkers Realty Sub, LLC	(2)
YRL Associates, L.P.	(2)

_______________________________

(1)	Co-Issuer of the Notes.
(2)	Guarantor of the Notes.

41086.01500

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO RULE 13a-14(a) AND RULE 15d-14(a)

I, James C. Stewart, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of MGM Growth Properties LLC;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):
	a)	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	b)	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

April 30, 2021

/s/ JAMES C. STEWART

James C. Stewart

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO RULE 13a-14(a) AND RULE 15d-14(a)

I, James C. Stewart, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of MGM Growth Properties Operating Partnership LP;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation;
	d)	disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):
	a)	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	b)	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

April 30, 2021

/s/ JAMES C. STEWART

James C. Stewart

Chief Executive Officer

MGM Growth Properties OP GP LLC, the sole general partner of MGM Growth Properties Operating Partnership LP

EX-31.3

Exhibit 31.3

CERTIFICATION PURSUANT TO RULE 13a-14(a) AND RULE 15d-14(a)

I, Andy H. Chien, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of MGM Growth Properties LLC;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):
	a)	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	b)	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

April 30, 2021

/s/ ANDY H. CHIEN

Andy H. Chien

Chief Financial Officer and Treasurer

EX-31.4

Exhibit 31.4

CERTIFICATION PURSUANT TO RULE 13a-14(a) AND RULE 15d-14(a)

I, Andy H. Chien, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of MGM Growth Properties Operating Partnership LP;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation;
	d)	disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):
	a)	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	b)	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

April 30, 2021

/s/ ANDY H. CHIEN

Andy H. Chien

Chief Financial Officer and Treasurer

MGM Growth Properties OP GP LLC, the sole general partner of MGM Growth Properties Operating Partnership LP

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Quarterly Report of MGM Growth Properties LLC (the “Company”) on Form 10-Q for the period ending March 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, James C. Stewart, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ JAMES C. STEWART

James C. Stewart

Chief Executive Officer

April 30, 2021

A signed original of this certification has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Quarterly Report of MGM Growth Properties Operating Partnership LP (the “Company”) on Form 10-Q for the period ending March 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, James C. Stewart, Chief Executive Officer of MGM Growth Properties OP GP LLC, the sole general partner of MGM Growth Properties Operating Partnership LP, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

(1)    The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)    The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ JAMES C. STEWART

James C. Stewart

Chief Executive Officer
MGM Growth Properties OP GP LLC, the sole general partner of MGM Growth Properties Operating Partnership LP

April 30, 2021

A signed original of this certification has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.3

Exhibit 32.3

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Quarterly Report of MGM Growth Properties LLC (the “Company”) on Form 10-Q for the period ending March 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Andy H. Chien, Chief Financial Officer and Treasurer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ ANDY H. CHIEN

Andy H. Chien

Chief Financial Officer and Treasurer

April 30, 2021

A signed original of this certification has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.4

Exhibit 32.4

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Quarterly Report of MGM Growth Properties Operating Partnership LP (the “Company”) on Form 10-Q for the period ending March 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Andy H. Chien, Chief Financial Officer and Treasurer of MGM Growth Properties OP GP LLC, the sole general partner of MGM Growth Properties Operating Partnership LP, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

(1)    The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)    The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ ANDY H. CHIEN

Andy H. Chien

Chief Financial Officer and Treasurer
MGM Growth Properties OP GP LLC, the sole general partner of MGM Growth Properties Operating Partnership LP

April 30, 2021

A signed original of this certification has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	3 Months Ended
	Mar. 31, 2021	Apr. 28, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-37733
Entity Registrant Name	MGM Growth Properties LLC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-5513237
Entity Address, Address Line One	1980 Festival Plaza Drive, Suite #750
Entity Address, City or Town	Las Vegas
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89135
City Area Code	702
Local Phone Number	669-1480
Title of 12(b) Security	Class A Shares, no par value
Trading Symbol	MGP
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001656936
Current Fiscal Year End Date	--12-31
MGP Operating Partnership
Document Information [Line Items]
Entity File Number	333-215571
Entity Registrant Name	MGM Growth Properties Operating Partnership LP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	81-1162318
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001691299
Class A Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		153,386,208
Class B Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		1

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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
ASSETS
Real estate investments, net	$ 8,251,957	$ 8,310,737
Lease incentive asset	502,156	507,161
Investment in unconsolidated affiliate	820,390	810,066
Cash and cash equivalents	143,231	626,385
Prepaid expenses and other assets	24,310	25,525
Above market lease, asset	39,473	39,867
Operating lease right-of-use assets	280,708	280,565
Total assets	10,062,225	10,600,306
Liabilities
Debt, net	4,161,439	4,168,959
Due to MGM Resorts International and affiliates	335	316
Accounts payable, accrued expenses and other liabilities	75,386	124,109
Accrued interest	59,510	48,505
Dividend and distribution payable	131,025	136,484
Deferred revenue	170,015	156,760
Deferred income taxes, net	33,298	33,298
Operating lease liabilities	341,386	341,133
Total liabilities	4,972,394	5,009,564
Commitments and contingencies (Note 11)
Shareholders' equity
Class A shares: no par value, 1,000,000,000 shares authorized, 153,323,880 and 131,459,651 shares issued and outstanding as of March 31, 2021 and December 31, 2020, respectively	0	0
Additional paid-in capital	3,459,599	3,114,331
Accumulated deficit	(439,194)	(422,897)
Accumulated other comprehensive loss	(53,553)	(51,197)
Total Class A shareholders' equity	2,966,852	2,640,237
Noncontrolling interest	2,122,979	2,950,505
Total shareholders' equity	5,089,831	5,590,742
Partners’ capital
Total liabilities and shareholders' equity	10,062,225	10,600,306
MGP Operating Partnership
ASSETS
Real estate investments, net	8,251,957	8,310,737
Lease incentive asset	502,156	507,161
Investment in unconsolidated affiliate	820,390	810,066
Cash and cash equivalents	143,231	626,385
Prepaid expenses and other assets	24,310	25,525
Above market lease, asset	39,473	39,867
Operating lease right-of-use assets	280,708	280,565
Total assets	10,062,225	10,600,306
Liabilities
Debt, net	4,161,439	4,168,959
Due to MGM Resorts International and affiliates	335	316
Accounts payable, accrued expenses and other liabilities	75,386	124,109
Accrued interest	59,510	48,505
Dividend and distribution payable	131,025	136,484
Deferred revenue	170,015	156,760
Deferred income taxes, net	33,298	33,298
Operating lease liabilities	341,386	341,133
Total liabilities	4,972,394	5,009,564
Commitments and contingencies (Note 11)
Partners’ capital
General partner	0	0
Limited partners: 264,696,637 and 279,966,531 Operating Partnership units issued and outstanding as of March 31, 2021 and December 31, 2020, respectively.	5,089,831	5,590,742
Total partners’ capital	5,089,831	5,590,742
Total liabilities and shareholders' equity	$ 10,062,225	$ 10,600,306

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Condensed Consolidated Balance Sheets (Parenthetical) - shares	Mar. 31, 2021	Dec. 31, 2020
Shareholders' equity
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares, issued (in shares)	153,323,880	131,459,651
Common stock, shares outstanding (in shares)	153,323,880	131,459,651
MGP Operating Partnership
Partners’ capital
Partners' capital, units issued (in shares)	264,696,637	279,966,531
Partners' capital, units outstanding (in shares)	264,696,637	279,966,531

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Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues	$ 194,342	$ 209,570
Expenses
Depreciation	57,937	62,047
Property transactions, net	843	195,056
Ground lease expense and other	5,920	5,920
Acquisition-related expenses	0	622
General and administrative	3,659	4,882
Total Expenses	68,359	268,527
Other income (expense)
Income from unconsolidated affiliate	25,485	13,363
Interest income	317	1,091
Interest expense	(68,446)	(49,198)
Gain (loss) on unhedged interest rate swaps, net	35,059	(12,120)
Other	(197)	(18,368)
Non-operating income (expense)	(7,782)	(65,232)
Income (loss) before income taxes	118,201	(124,189)
Provision for income taxes	(2,792)	(1,133)
Net income	115,409	(125,322)
Less: Net (income) loss attributable to noncontrolling interest	(55,811)	75,574
Net income (loss) attributable to Class A shareholders	$ 59,598	$ (49,748)
Weighted average Class A shares outstanding:
Basic (in shares)	135,709,000	123,259,000
Diluted (in shares)	135,936,000	123,259,000
MGP Operating Partnership
Revenues	$ 194,342	$ 209,570
Expenses
Depreciation	57,937	62,047
Property transactions, net	843	195,056
Ground lease expense and other	5,920	5,920
Acquisition-related expenses	0	622
General and administrative	3,659	4,882
Total Expenses	68,359	268,527
Other income (expense)
Income from unconsolidated affiliate	25,485	13,363
Interest income	317	1,091
Interest expense	(68,446)	(49,198)
Gain (loss) on unhedged interest rate swaps, net	35,059	(12,120)
Other	(197)	(18,368)
Non-operating income (expense)	(7,782)	(65,232)
Income (loss) before income taxes	118,201	(124,189)
Provision for income taxes	(2,792)	(1,133)
Net income	$ 115,409	$ (125,322)
Weighted average Operating Partnership units outstanding
Basic (in shares)	276,692,000	324,310,000
Diluted (in shares)	276,919,000	324,310,000
Net income (loss) per Operating Partnership unit (basic) (in dollars per share)	$ 0.42	$ (0.39)
Net income (loss) per Operating Partnership unit (diluted) (in dollars per share)	$ 0.42	$ (0.39)
Class A Shares
Weighted average Class A shares outstanding:
Basic (in shares)	135,709,000	123,259,000
Diluted (in shares)	135,936,000	123,259,000
Per Class A share data
Earnings per Class A share (basic) (in usd per share)	$ 0.44	$ (0.40)
Earnings per Class A share (diluted) (in usd per share)	$ 0.44	$ (0.40)
Rental revenue
Revenues	$ 188,303	$ 203,531
Rental revenue | MGP Operating Partnership
Revenues	188,303	203,531
Ground lease and other
Revenues	6,039	6,039
Ground lease and other | MGP Operating Partnership
Revenues	$ 6,039	$ 6,039

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Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income (loss)	$ 115,409	$ (125,322)
Other comprehensive income (loss)	16,579	(95,320)
Comprehensive income (loss)	131,988	(220,642)
Less: Comprehensive (income) loss attributable to noncontrolling interests	(64,191)	133,363
Comprehensive income (loss) attributable to Class A shareholders	67,797	(87,279)
MGP Operating Partnership
Net income (loss)	115,409	(125,322)
Other comprehensive income (loss)	16,579
Unrealized gain (loss) on cash flow hedges	16,579	(95,320)
Comprehensive income (loss) attributable to Class A shareholders	$ 131,988	$ (220,642)

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net income (loss)	$ 115,409	$ (125,322)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	57,937	62,047
Property transactions, net	843	195,056
Amortization of financing costs	2,863	2,509
Loss on retirement of debt	0	18,129
Non-cash ground lease, net	259	260
Deemed contributions - tax sharing agreement	2,792	1,133
Straight-line rental revenues, excluding amortization of lease incentive asset	13,633	10,781
Amortization of lease incentive asset	5,005	5,005
Amortization of deferred revenue on non-normal tenant improvements	(378)	(378)
Amortization of cash flow hedges	4,618	756
(Gain) loss on unhedged interest rate swaps, net	(35,059)	12,120
Share-based compensation	852	754
Income from unconsolidated affiliate	(25,485)	(13,363)
Distributions from unconsolidated affiliate	15,161	12,181
Change in operating assets and liabilities:
Prepaid expenses and other assets	242	(1,927)
Due to MGM Resorts International and affiliates	19	586
Accounts payable, accrued expenses and other liabilities	(1,644)	1,028
Accrued interest	11,005	(5,454)
Net cash provided by operating activities	168,072	175,901
Cash flows from investing activities
Proceeds from sale of Mandalay Bay real estate assets, net	0	58,084
Net cash provided by investing activities	0	58,084
Cash flows from financing activities
Net repayments under bank credit facility	(9,500)	(353,750)
Proceeds from issuance of bridge loan facility	0	1,304,625
Deferred financing costs	0	(1,335)
Proceeds from issuance of Class A shares, net	676,034	524,616
Redemption of Operating Partnership units	(1,181,276)	0
Dividends and distributions paid	(136,484)	(147,349)
Other	0	(277)
Net cash provided by (used in) financing activities	(651,226)	1,326,530
Cash and cash equivalents
Net increase (decrease) for the period	(483,154)	1,560,515
Balance, beginning of period	626,385	202,101
Balance, end of period	143,231	1,762,616
Supplemental cash flow disclosures
Interest paid	49,960	51,388
Non-cash investing and financing activities
Accrual of dividend and distribution payable to Class A shareholders and Operating Partnership unit holders	131,025	158,488
MGP BREIT Venture assumption of bridge loan facility	0	1,304,625
MGP BREIT Venture Transaction
Non-cash investing and financing activities
Investment in MGP BREIT Venture	0	802,000
MGP Operating Partnership
Cash flows from operating activities
Net income (loss)	115,409	(125,322)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	57,937	62,047
Property transactions, net	843	195,056
Amortization of financing costs	2,863	2,509
Loss on retirement of debt	0	18,129
Non-cash ground lease, net	259	260
Deemed contributions - tax sharing agreement	2,792	1,133
Straight-line rental revenues, excluding amortization of lease incentive asset	13,633	10,781
Amortization of lease incentive asset	5,005	5,005
Amortization of deferred revenue on non-normal tenant improvements	(378)	(378)
Amortization of cash flow hedges	4,618	756
(Gain) loss on unhedged interest rate swaps, net	(35,059)	12,120
Share-based compensation	852	754
Income from unconsolidated affiliate	(25,485)	(13,363)
Distributions from unconsolidated affiliate	15,161	12,181
Change in operating assets and liabilities:
Prepaid expenses and other assets	242	(1,927)
Due to MGM Resorts International and affiliates	19	586
Accounts payable, accrued expenses and other liabilities	(1,644)	1,028
Accrued interest	11,005	(5,454)
Net cash provided by operating activities	168,072	175,901
Cash flows from investing activities
Proceeds from sale of Mandalay Bay real estate assets, net	0	58,084
Net cash provided by investing activities	0	58,084
Cash flows from financing activities
Net repayments under bank credit facility	(9,500)	(353,750)
Proceeds from issuance of bridge loan facility	0	1,304,625
Deferred financing costs	0	(1,335)
Proceeds from issuance of Class A shares, net	676,034	524,616
Redemption of Operating Partnership units	(1,181,276)	0
Dividends and distributions paid	(136,484)	(147,349)
Other	0	(277)
Net cash provided by (used in) financing activities	(651,226)	1,326,530
Cash and cash equivalents
Net increase (decrease) for the period	(483,154)	1,560,515
Balance, beginning of period	626,385	202,101
Balance, end of period	143,231	1,762,616
Supplemental cash flow disclosures
Interest paid	49,960	51,388
Non-cash investing and financing activities
Accrual of dividend and distribution payable to Class A shareholders and Operating Partnership unit holders	131,025	158,488
MGP BREIT Venture assumption of bridge loan facility	0	1,304,625
MGP Operating Partnership | MGP BREIT Venture Transaction
Non-cash investing and financing activities
Investment in MGP BREIT Venture	$ 0	$ 802,000

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Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands		Total	Total Class A Shareholders' Equity	Common stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Noncontrolling Interest
Beginning Balance (in shares) at Dec. 31, 2019				113,807,000
Beginning Balance at Dec. 31, 2019		$ 6,898,012	$ 2,514,899	$ 0	$ 2,766,325	$ (244,381)	$ (7,045)	$ 4,383,113
Changes in equity:
Net income		(125,322)
Net loss	[1]	(108,786)	(49,748)			(49,748)		(59,038)
MGP BREIT Venture Transaction	[1]	63,904	8,287		8,228		59	55,617
Reclassifications and remeasurements of temporary equity	[1]	(1,599,319)						(1,599,319)
Issuance of Class A shares (in shares)	[1]			17,524,000
Issuance of Class A shares	[1]	506,198	442,717		443,363		(646)	63,481
Cash flow hedges		(95,320)
Cash flow hedges	[1]	(82,520)	(37,531)				(37,531)	(44,989)
Share-based compensation	[1]	649	289		289			360
Deemed contribution - tax sharing agreement	[1]	882						882
Dividends and distributions declared	[1]	(137,199)	(62,389)			(62,389)		(74,810)
Other (shares)	[1]			16,000
Other	[1]	40	209		209			(169)
Ending Balance (in shares) at Mar. 31, 2020				131,347,000
Ending Balance at Mar. 31, 2020		$ 5,541,861	2,816,733	$ 0	3,218,414	(356,518)	(45,163)	2,725,128
Beginning Balance (in shares) at Dec. 31, 2020		131,459,651		131,460,000
Beginning Balance at Dec. 31, 2020		$ 5,590,742	2,640,237	$ 0	3,114,331	(422,897)	(51,197)	2,950,505
Changes in equity:
Net income		115,409	59,598			59,598		55,811
Issuance of Class A shares (in shares)				21,850,000
Issuance of Class A shares		676,034	561,744		565,437		(3,693)	114,290
Redemption of Operating Partnership units		(1,181,276)	(227,487)		(220,627)		(6,860)	(953,789)
Cash flow hedges		16,579	8,199				8,199	8,380
Share-based compensation		852	431		431			421
Deemed contribution - tax sharing agreement		2,792						2,792
Dividends and distributions declared		(131,025)	(75,895)			(75,895)		(55,130)
Other (shares)				14,000
Other		$ (276)	25		27		(2)	(301)
Ending Balance (in shares) at Mar. 31, 2021		153,323,880		153,324,000
Ending Balance at Mar. 31, 2021		$ 5,089,831	$ 2,966,852	$ 0	$ 3,459,599	$ (439,194)	$ (53,553)	$ 2,122,979

[1] Excludes amounts attributable to redeemable noncontrolling interest. See Note 2.

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Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Dividend declared (in dollars per share)	$ 0.4950	$ 0.4750

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Condensed Consolidated Statements of Partners' Capital - USD ($) $ in Thousands		Total		MGP Operating Partnership		MGP Operating Partnership Limited Partners
Beginning Balance at Dec. 31, 2019				$ 6,898,012		$ 6,898,012
Changes in partners' capital:
Net income		$ (125,322)		(125,322)
Net loss		(108,786)	[1]	(108,786)	[2]	(108,786)	[2]
Proceeds from issuance of Class A shares by MGP	[2]			506,198		506,198
MGP BREIT Venture Transaction	[2]			63,904		63,904
Reclassifications and remeasurements of temporary equity		(1,599,319)	[1]	(1,599,319)	[2]	(1,599,319)	[2]
Cash flow hedges		(95,320)
Cash flow hedges	[2]			(82,520)		(82,520)
Share-based compensation		649	[1]	649	[2]	649	[2]
Deemed contribution - tax sharing agreement		882	[1]	882	[2]	882	[2]
Dividends and distributions declared	[2]			(137,199)		(137,199)
Other	[2]			40		40
Ending Balance at Mar. 31, 2020				5,541,861		5,541,861
Beginning Balance at Dec. 31, 2020				5,590,742		5,590,742
Changes in partners' capital:
Net income		115,409		115,409		115,409
Proceeds from issuance of Class A shares by MGP				676,034		676,034
Redemption of Operating Partnership units				(1,181,276)		(1,181,276)
Cash flow hedges		16,579		16,579		16,579
Share-based compensation		852		852		852
Deemed contribution - tax sharing agreement		$ 2,792		2,792		2,792
Dividends and distributions declared				(131,025)		(131,025)
Other				(276)		(276)
Ending Balance at Mar. 31, 2021				$ 5,089,831		$ 5,089,831

[1] Excludes amounts attributable to redeemable noncontrolling interest. See Note 2.

[2] Excludes amounts attributable to redeemable capital. See Note 2.

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Condensed Consolidated Statements of Partners' Capital (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Dividend declared (in dollars per share)	$ 0.4950	$ 0.4750
MGP Operating Partnership
Dividend declared (in dollars per share)	$ 0.4950	$ 0.4750

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Business

3 Months Ended

Mar. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BUSINESS

BUSINESS

Organization. MGM Growth Properties LLC (“MGP” or the “Company”) is a limited liability company that was organized in Delaware in October 2015. MGP conducts its operations through MGM Growth Properties Operating Partnership LP (the “Operating Partnership”), a Delaware limited partnership that was formed in January 2016 and became a subsidiary of MGP in April 2016. The Company elected to be taxed as a real estate investment trust (“REIT”) commencing with its taxable year ended December 31, 2016.

MGP is a publicly traded REIT primarily engaged through its investment in the Operating Partnership which owns, acquires, leases and invests in large-scale destination entertainment and leisure properties, whose tenants generally offer casino gaming, hotel, convention, dining, entertainment and retail and other amenities. A wholly owned subsidiary of the Operating Partnership leases its real estate properties back to a wholly owned subsidiary of MGM under a master lease agreement (the “MGM-MGP Master Lease”). In February 2020, the Operating Partnership entered into certain transactions to form a venture owned 50.1% by the Operating Partnership and 49.9% by a subsidiary of Blackstone Real Estate Income Trust, Inc. (“BREIT”, such venture, the “MGP BREIT Venture”), which owns the real estate assets of MGM Grand Las Vegas and Mandalay Bay and leases such real estate properties back to a wholly owned subsidiary of MGM under a master lease agreement (the “MGP BREIT Venture lease”, such formation transaction, the “MGP BREIT Venture Transaction”).

As of March 31, 2021, there were approximately 264.7 million Operating Partnership units outstanding in the Operating Partnership, of which MGM owned approximately 111.4 million, or 42.1%, and MGP owned the remaining 57.9%. MGM’s Operating Partnership units are exchangeable into Class A shares of MGP on a one-to-one basis, or cash at the Fair Market Value of a Class A share (as defined in the Operating Partnership’s partnership agreement). The determination of settlement method is at the option of MGP’s independent conflicts committee. MGM’s indirect ownership of these Operating Partnership units is recognized as a noncontrolling interest in MGP’s financial statements. A wholly owned subsidiary of MGP is the general partner of the Operating Partnership and operates and controls all of its business affairs. As a result, MGP consolidates the Operating Partnership and its subsidiaries. MGM also has ownership of MGP’s outstanding Class B share. The Class B share is a non-economic interest in MGP which does not provide its holder any rights to profits or losses or any rights to receive distributions from the operations of MGP or upon liquidation or winding up of MGP but which represents a majority of the voting power of MGP’s shares. As a result, MGP continues to be controlled by MGM through its majority voting rights and is consolidated by MGM.

In March 2021, certain subsidiaries of MGM delivered a notice of redemption to the Company covering approximately 37.1 million Operating Partnership units that they held that was satisfied with aggregate cash proceeds of approximately $1.2 billion using cash on hand together with the proceeds from the issuance of Class A shares. Refer to Note 8 for further discussion.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of presentation. The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information set forth in the Accounting Standards Codification (“ASC”), as published by the Financial Accounting Standards Board (“FASB”), and with the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. All adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of results for the interim period have been included.

The accompanying condensed consolidated financial statements and related notes should be read in conjunction with the audited financial statements and notes thereto included in the Company’s most recent Annual Report on Form 10-K.

Reclassifications. Certain reclassifications have been made to conform the prior period presentation.

Principles of consolidation. The Company identifies entities for which control is achieved through means other than voting rights and to determine which business enterprise is the primary beneficiary of variable interest entities (“VIE”). A VIE is an entity in which either (i) the equity investors as a group, if any, lack the power through voting or similar rights to direct the activities of such entity that most significantly impact such entity’s economic performance or (ii) the equity investment at risk is insufficient to finance that entity’s activities without additional subordinated financial support. The Company identifies the primary beneficiary of a VIE as the enterprise that has both of the following characteristics: (i) the power to direct the activities

of the VIE that most significantly impact the entity’s economic performance; and (ii) the obligation to absorb losses or receive benefits of the VIE that could potentially be significant to the entity. The Company consolidates its investment in a VIE when it determines that it is its primary beneficiary. The Company may change its original assessment of a VIE upon subsequent events such as the modification of contractual arrangements that affect the characteristics or adequacy of the entity’s equity investments at risk and the disposition of all or a portion of an interest held by the primary beneficiary. The Company performs this analysis on an ongoing basis. The consolidated financial statements of MGP include the accounts of the Operating Partnership, a VIE of which the Company is the primary beneficiary, as well as its wholly owned and majority-owned subsidiaries, which represents all of MGP’s assets and liabilities. As MGP holds what is deemed a majority voting interest in the Operating Partnership through its ownership of the Operating Partnership’s sole general partner, it qualifies for the exemption from providing certain of the required disclosures associated with investments in VIEs. The consolidated financial statements of the Operating Partnership include the accounts of its wholly owned subsidiary, MGP Lessor LLC, which is the MGM-MGP Master Lease landlord, a VIE of which the Operating Partnership is the primary beneficiary. As of March 31, 2021, on a consolidated basis, MGP Lessor, LLC had total assets of $9.1 billion primarily related to its real estate investments, and total liabilities of $543.9 million primarily related to its deferred revenue and operating lease liabilities.

For entities determined not to be VIEs, the Company consolidates such entities in which the Company owns 100% of the equity. For entities in which the Company owns less than 100% of the equity interest, the Company consolidates the entity under the voting interest model if it has controlling financial interest based upon the terms of the respective entities’ ownership agreements. If the entity does not qualify for consolidation under the voting interest model and the Company has significant influence over the operating and financial decisions of the entity, the Company accounts for the entity under the equity method, such as the Company’s MGP BREIT Venture, which does not qualify for consolidation as the Company has joint control, given the entity is structured with substantive participating rights whereby both owners participate in the decision making process which prevents the Company from exerting a controlling financial interest, as defined in ASC 810.

Noncontrolling interest. MGP presents noncontrolling interest and classifies such interest as a component of consolidated shareholders’ equity, separate from the Company’s Class A shareholders’ equity. Noncontrolling interest in MGP represents Operating Partnership units currently held by subsidiaries of MGM. Comprehensive income or loss of the Operating Partnership is allocated to its noncontrolling interest based on the noncontrolling interest’s ownership percentage in the Operating Partnership except for income tax expenses. Ownership percentage is calculated by dividing the number of Operating Partnership units held by the noncontrolling interest by the total Operating Partnership units held by the noncontrolling interest and the Company. Issuance of additional Class A shares and Operating Partnership units changes the ownership interests of both the noncontrolling interest and the Company. Such transactions and the related proceeds are treated as capital transactions.

MGM may tender its Operating Partnership units for redemption in exchange for cash equal to the market price of MGP’s Class A shares at the time of redemption or for unregistered Class A shares on a one-for-one basis. Such election to pay cash or issue Class A shares to satisfy an Operating Partnership unitholder’s redemption request is solely within the control of MGP’s independent conflicts committee.

Redeemable noncontrolling interest and redeemable capital. On January 14, 2020 the Operating Partnership agreed to waive its right following the closing of the MGP BREIT Venture Transaction to issue MGP Class A shares, in lieu of cash, to settle redemptions of Operating Partnership units held by MGM up to a maximum cash redemption amount of $1.4 billion. In connection with the waiver, the Operating Partnership and the Company reclassified, from permanent equity to temporary equity, the carrying value of Operating Partnership units that could require cash redemption and remeasured the units to their redemption value. The Operating Partnership units that comprised the $1.4 billion redemption amount were determined based on a 3% discount to the ten-day average closing price prior to the date of determination.

At each subsequent reporting period, the carrying value of temporary equity was remeasured to the greater of: (1) the carrying value of the number of units then considered redeemable, inclusive of the comprehensive income and losses attributed based on a per unit or share basis in accordance with ASC 810 or (2) the redemption value of the number of units that are then redeemable based on the remaining aggregate cash redemption amount and the per share redemption value, except that decreases in the per unit or share redemption were limited to the amount of previous increases, with the differences between the carrying value and the remeasured value being recorded as an adjustment in additional paid-in capital (in lieu of retained earnings) or limited partners’ capital.

The $1.4 billion maximum cash redemption amount was fulfilled by the $700 million redeemed on May 18, 2020 and the $700 million redeemed on December 2, 2020.

The components of equity that related to the Company’s redeemable noncontrolling interest and the Operating Partnership’s redeemable capital during the quarter ended March 31, 2020 were as follows:

(in thousands)
As of January 1, 2020	$	—
Reclassification and remeasurement adjustments	1,599,319
Attribution of:
Net loss	(16,536)
Proceeds from the issuance of Class A shares by MGP	18,418
MGP BREIT Venture Transaction	16,136
Cash flow hedges	(12,800)
Share-based compensation	105
Deemed contribution - tax sharing agreement	251
MGP dividends and Operating Partnership distributions declared	(21,289)
Other	(48)
As of March 31, 2020	$	1,583,556

Property transactions, net. Property transactions, net are comprised of transactions related to long-lived assets, such as gains and losses on the disposition of assets.

Fair value measurements. Fair value measurements are utilized in the accounting and impairment assessments of the Company’s real estate investments, investment in unconsolidated affiliate, and certain of its financial assets and liabilities. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and is measured according to a hierarchy that includes: Level 1 inputs, such as quoted prices in an active market; Level 2 inputs, which are observable inputs for similar assets; or Level 3 inputs, which are unobservable inputs. The Company used the following inputs in its fair value measurements:

•Level 2 inputs for its debt fair value disclosures. See Note 6; and

•Level 2 inputs when measuring the fair value of its interest rate swaps. See Note 7.

Reportable segment. The Company’s operations consist of investments in real estate, both wholly-owned and through its investment in MGP BREIT Venture, for which all such real estate properties are similar to one another in that they consist of large-scale destination entertainment and leisure properties and related offerings, whose tenants generally offer casino gaming, hotel, convention, dining, entertainment and retail amenities, have similar economic characteristics and are governed by triple-net operating leases. The operating results of the Company’s wholly owned and equity method real estate investments are regularly reviewed, in the aggregate, by the chief operating decision maker. As such, the Company has one reportable segment.

Income tax provision. For interim income tax reporting, the Company estimates its annual effective tax rate and applies it to its year-to-date ordinary income. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur. The Company’s effective income tax rate was a provision of 2.4% on income before income taxes and a provision of 0.9% on loss before income taxes for the three months ended March 31, 2021 and 2020, respectively.

The Company and MGM join in the filing of a New Jersey consolidated corporation business tax return and have entered into a tax sharing agreement which provides for an allocation of taxes due in the consolidated New Jersey return. No amounts were due to MGM under the tax sharing agreement between the Company and MGM as of March 31, 2021 or December 31, 2020.

Recently issued accounting standards. In March 2020, the FASB issued ASC 848, “Reference Rate Reform (Topic 848)”. ASC 848 provides optional expedients for applying U.S. GAAP to reference rate reform related contracts, hedging relationships and other qualifying transactions. Application of these expedients preserve the presentation of derivative instruments consistent with past presentation. The guidance is optional and may be elected when or as reference rate reform activities occur. The Company is currently evaluating whether it will elect practical expedients if and when its hedging and related activities are impacted.

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Real Estate Investments

3 Months Ended

Mar. 31, 2021

Real Estate [Abstract]

REAL ESTATE INVESTMENTS

REAL ESTATE INVESTMENTS

The carrying value of real estate investments is as follows:

	March 31, 2021		December 31, 2020
	(in thousands)
Land	$	3,431,228	$	3,431,228
Buildings, building improvements, land improvements and integral equipment	7,424,820		7,426,110
	10,856,048		10,857,338
Less: Accumulated depreciation	(2,604,091)		(2,546,601)
	$	8,251,957	$	8,310,737

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Investment in Unconsolidated Affiliate

3 Months Ended

Mar. 31, 2021

Equity Method Investments and Joint Ventures [Abstract]

INVESTMENT IN UNCONSOLIDATED AFFILIATE

INVESTMENT IN UNCONSOLIDATED AFFILIATE

As of March 31, 2021, the Operating Partnership’s investment in unconsolidated affiliate was comprised of its 50.1% interest in MGP BREIT Venture. The Operating Partnership recorded its share of income of $25.5 million and $13.4 million for the three months ended March 31, 2021 and 2020, respectively, as “Income from unconsolidated affiliate” in the condensed consolidated statements of operations. Additionally, the Operating Partnership received $15.2 million and $12.2 million in distributions from MGP BREIT Venture during the three months ended March 31, 2021 and 2020, respectively. The Operating Partnership received its distribution relating to March 2021, together with its distribution for April 2021, of $16.0 million upon execution of the cash flow guarantee, discussed below.

Summarized results of operations of MGP BREIT Venture are as follows:

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Net revenues	$	98,681	$	50,437
Net income	50,869		26,675

MGP BREIT Venture guarantee. The Operating Partnership provides a guarantee for losses incurred by the lenders of the $3.0 billion indebtedness of the MGP BREIT Venture arising out of certain bad acts by the Operating Partnership, its venture partner, or the venture, such as fraud or willful misconduct, based on the party’s percentage ownership of the MGP BREIT Venture, which guarantee is capped at 10% of the principal amount outstanding at the time of the loss. The Operating Partnership and its venture partner have separately indemnified each other for the other party’s share of the overall liability exposure, if at fault. The guarantee is accounted for under ASC 460 at fair value; such value is immaterial.

MGP BREIT Venture excess cash flow guarantee. The MGP BREIT Venture loan agreement requires that the tenant EBITDAR to MGP BREIT Venture cash interest ratio is maintained above a specified level. If this ratio is not met for two consecutive fiscal quarters, then the borrowers will be unable to distribute excess cash flows to the venture partners unless and until an excess cash flow guarantee is provided. The ratio was not met for the two consecutive quarters ended December 31, 2020, and, as a result, in April 2021, the Operating Partnership and an entity affiliated with BREIT each delivered an excess cash flow guarantee to the lenders covering all distributions since January 1, 2021. The guarantee provides that the MGP BREIT Venture may distribute an aggregate amount of cash not to exceed 9.9% of the principal amount of the MGP BREIT Venture’s outstanding indebtedness under the loan agreement, after which distributions must remain at the MGP BREIT Venture in a restricted cash account until such time as the tenant EBITDAR to MGP BREIT Venture cash interest ratio is met for two consecutive quarters. In addition, in the event of a default under the loan agreement while the ratio is not met, the Company may be required to return its respective share of distributions received during the period covered by the guarantee.

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Leases

3 Months Ended

Mar. 31, 2021

Leases [Abstract]

Leases

LEASESMGM-MGP Master Lease. The MGM-MGP Master Lease is accounted for as an operating lease and has an initial lease term of ten years that began on April 25, 2016 (other than with respect to MGM National Harbor, as described below) with the potential to extend the term for four additional five-year terms thereafter at the option of the tenant. The lease provides that any extension of its term must apply to all of the real estate under the lease at the time of the extension. With respect to MGM National Harbor, the initial lease term ends on August 31, 2024. Thereafter, the initial term of the lease with respect to MGM National Harbor may be renewed at the option of the tenant for an initial renewal period lasting until the earlier of the

end of the then-current term of the lease or the next renewal term (depending on whether MGM elects to renew the other properties under the lease in connection with the expiration of the initial ten-year term). If, however, the tenant chooses not to renew the lease with respect to MGM National Harbor after the initial MGM National Harbor term under the lease, the tenant would also lose the right to renew the lease with respect to the rest of the properties when the initial ten-year lease term ends related to the rest of the properties in 2026. The lease has a triple-net structure, which requires the tenant to pay substantially all costs associated with the lease, including real estate taxes, insurance, utilities and routine maintenance, in addition to the base rent. Additionally, the lease provides MGP with a right of first offer with respect to MGM Springfield and with respect to any future gaming development by MGM on the undeveloped land adjacent to Empire City, which MGP may exercise should MGM elect to sell either property in the future.

Rent under the lease consists of a “base rent” component and a “percentage rent” component. As of March 31, 2021, the base rent represents approximately 91% of the rent payments due under the lease and the percentage rent represents approximately 9% of the rent payments due under the lease. The base rent includes a fixed annual rent escalator of 2.0% for the second through the sixth lease years (as defined in the lease). Thereafter, beginning on April 1, 2022, the annual escalator of 2.0% will be subject to the tenant and, without duplication, the operating subsidiary sublessees of the tenant, collectively meeting an adjusted net revenue to rent ratio of 6.25:1.00 based on their net revenue from the leased properties subject to the lease (as determined in accordance with U.S. GAAP, adjusted to exclude net revenue attributable to certain scheduled subleases and, at the tenant’s option, reimbursed cost revenue). The percentage rent will initially be a fixed amount for approximately the first six years and will then be adjusted every five years based on the average annual adjusted net revenues of the tenant and, without duplication, the operating subtenants, from the leased properties subject to the lease at such time for the trailing five calendar-year period (calculated by multiplying the average annual adjusted net revenues, excluding net revenue attributable to certain scheduled subleases and, at the tenant’s option, reimbursed cost revenue, for the trailing five calendar-year period by 1.4%).

As of March 31, 2021, total annual cash rent under the MGM-MGP Master Lease was $827.8 million. In connection with the commencement of the sixth lease year on April 1, 2021, and the corresponding 2.0% fixed annual rent escalator that went into effect on such date, the base rent under the MGM-MGP Master Lease increased to $764.9 million, resulting in total annual rent under the MGM-MGP Master Lease of $842.8 million.

Straight-line rental revenues from the MGM-MGP Master Lease, which includes lease incentive asset amortization, were $188.3 million and $203.5 million for the three months ended March 31, 2021 and 2020, respectively. The Company also recognized revenue related to ground lease and other of $6.0 million for both the three months ended March 31, 2021 and 2020.

Under the MGM-MGP Master Lease, future non-cancelable minimum cash rental payments, which are the payments under the initial 10-year term through April 30, 2026 and do not include the four five-year renewal options and, with respect to MGM National Harbor, through August 31, 2024, are as follows as of March 31, 2021:

Year ending December 31,	(in thousands)
2021 (excluding the three months ended March 31, 2021)	$	632,071
2022	784,336
2023	764,861
2024	733,161
2025	669,761
Thereafter	223,254
Total	$	3,807,444

Leases

LEASESMGM-MGP Master Lease. The MGM-MGP Master Lease is accounted for as an operating lease and has an initial lease term of ten years that began on April 25, 2016 (other than with respect to MGM National Harbor, as described below) with the potential to extend the term for four additional five-year terms thereafter at the option of the tenant. The lease provides that any extension of its term must apply to all of the real estate under the lease at the time of the extension. With respect to MGM National Harbor, the initial lease term ends on August 31, 2024. Thereafter, the initial term of the lease with respect to MGM National Harbor may be renewed at the option of the tenant for an initial renewal period lasting until the earlier of the

end of the then-current term of the lease or the next renewal term (depending on whether MGM elects to renew the other properties under the lease in connection with the expiration of the initial ten-year term). If, however, the tenant chooses not to renew the lease with respect to MGM National Harbor after the initial MGM National Harbor term under the lease, the tenant would also lose the right to renew the lease with respect to the rest of the properties when the initial ten-year lease term ends related to the rest of the properties in 2026. The lease has a triple-net structure, which requires the tenant to pay substantially all costs associated with the lease, including real estate taxes, insurance, utilities and routine maintenance, in addition to the base rent. Additionally, the lease provides MGP with a right of first offer with respect to MGM Springfield and with respect to any future gaming development by MGM on the undeveloped land adjacent to Empire City, which MGP may exercise should MGM elect to sell either property in the future.

Rent under the lease consists of a “base rent” component and a “percentage rent” component. As of March 31, 2021, the base rent represents approximately 91% of the rent payments due under the lease and the percentage rent represents approximately 9% of the rent payments due under the lease. The base rent includes a fixed annual rent escalator of 2.0% for the second through the sixth lease years (as defined in the lease). Thereafter, beginning on April 1, 2022, the annual escalator of 2.0% will be subject to the tenant and, without duplication, the operating subsidiary sublessees of the tenant, collectively meeting an adjusted net revenue to rent ratio of 6.25:1.00 based on their net revenue from the leased properties subject to the lease (as determined in accordance with U.S. GAAP, adjusted to exclude net revenue attributable to certain scheduled subleases and, at the tenant’s option, reimbursed cost revenue). The percentage rent will initially be a fixed amount for approximately the first six years and will then be adjusted every five years based on the average annual adjusted net revenues of the tenant and, without duplication, the operating subtenants, from the leased properties subject to the lease at such time for the trailing five calendar-year period (calculated by multiplying the average annual adjusted net revenues, excluding net revenue attributable to certain scheduled subleases and, at the tenant’s option, reimbursed cost revenue, for the trailing five calendar-year period by 1.4%).

As of March 31, 2021, total annual cash rent under the MGM-MGP Master Lease was $827.8 million. In connection with the commencement of the sixth lease year on April 1, 2021, and the corresponding 2.0% fixed annual rent escalator that went into effect on such date, the base rent under the MGM-MGP Master Lease increased to $764.9 million, resulting in total annual rent under the MGM-MGP Master Lease of $842.8 million.

Straight-line rental revenues from the MGM-MGP Master Lease, which includes lease incentive asset amortization, were $188.3 million and $203.5 million for the three months ended March 31, 2021 and 2020, respectively. The Company also recognized revenue related to ground lease and other of $6.0 million for both the three months ended March 31, 2021 and 2020.

Under the MGM-MGP Master Lease, future non-cancelable minimum cash rental payments, which are the payments under the initial 10-year term through April 30, 2026 and do not include the four five-year renewal options and, with respect to MGM National Harbor, through August 31, 2024, are as follows as of March 31, 2021:

Year ending December 31,	(in thousands)
2021 (excluding the three months ended March 31, 2021)	$	632,071
2022	784,336
2023	764,861
2024	733,161
2025	669,761
Thereafter	223,254
Total	$	3,807,444

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Debt

3 Months Ended

Mar. 31, 2021

Debt Disclosure [Abstract]

DEBT

DEBT

Debt consists of the following:

	March 31,		December 31,
	2021		2020
	(in thousands)
Senior secured revolving credit facility	$	500	$	10,000
5.625% senior notes, due 2024	1,050,000		1,050,000
4.625% senior notes, due 2025	800,000		800,000
4.50% senior notes, due 2026	500,000		500,000
5.75% senior notes, due 2027	750,000		750,000
4.50% senior notes, due 2028	350,000		350,000
3.875% senior notes, due 2029	750,000		750,000
	4,200,500		4,210,000
Less: Unamortized discount and debt issuance costs	(39,061)		(41,041)
	$	4,161,439	$	4,168,959

Operating Partnership credit agreement and bridge facility. At March 31, 2021, the Operating Partnership senior secured credit facility consisted of a $1.4 billion revolving credit facility. At March 31, 2021, the interest rate on the revolving credit facility was 4.00%. The Operating Partnership’s senior credit facility limits the amount of letters of credit that can be issued to $75 million. No letters of credit were outstanding under the Operating Partnership senior secured credit facility at March 31, 2021. The Operating Partnership was in compliance with its financial covenants at March 31, 2021.

Refer to Note 7 for further discussion of the Company’s interest rate swap agreements.

Fair value of debt. The estimated fair value of the Operating Partnership’s debt was $4.4 billion at March 31, 2021 and $4.5 billion at December 31, 2020. Fair value was estimated using quoted market prices for the Operating Partnership’s senior notes and senior secured credit facility.

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Derivatives and Hedging Activities

3 Months Ended

Mar. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVES AND HEDGING ACTIVITIES

DERIVATIVES AND HEDGING ACTIVITIES

The Operating Partnership uses derivative instruments to mitigate the effects of interest rate volatility inherent in its variable rate senior credit facility and forecasted debt issuances for the duration and amount of its interest rate swap agreements, which such variable rate could unfavorably impact future earnings and forecasted cash flows. The Operating Partnership and the Company do not use derivative instruments for speculative or trading purposes.

The interest rate swaps as of March 31, 2021 are summarized in the table below.

	Notional Amount		Weighted Average Fixed Rate		Fair Value Liability		Effective Date	Maturity Date
	(in thousands, except percentages)
Derivatives designated as hedges:
	$	900,000	1.801	%	$	(29,170)	November 30, 2021	December 31, 2024
	$	900,000			$	(29,170)
Derivatives not designated as hedges:
	$	1,200,000	1.844	%	$	(13,879)	May 3, 2017	November 30, 2021
	300,000		1.158	%	(6,145)		September 6, 2019	December 31, 2024
	400,000		2.252	%	(22,710)		October 1, 2019	December 31, 2029
	$	1,900,000			$	(42,734)
					$	(71,904)

The interest rate swaps as of December 31, 2020 are summarized in the table below.

	Notional Amount		Weighted Average Fixed Rate		Fair Value Liability		Effective Date	Maturity Date
	(in thousands, except percentages)
Derivatives designated as hedges:
	$	900,000	1.801	%	$	(41,131)	November 30, 2021	December 31, 2024
	$	900,000			$	(41,131)
Derivatives not designated as hedges:
	$	1,200,000	1.844	%	$	(18,889)	May 3, 2017	November 30, 2021
	300,000		1.158	%	(10,451)		September 6, 2019	December 31, 2024
	400,000		2.252	%	(48,453)		October 1, 2019	December 31, 2029
	$	1,900,000			$	(77,793)
					$	(118,924)

As of March 31, 2021 and December 31, 2020, the Operating Partnership’s interest rate swaps that are in a liability position are recorded within “Accounts payable, accrued expenses, and other liabilities”.

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Shareholders' Equity and Partners' Capital

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

SHAREHOLDERS' EQUITY AND PARTNERS' CAPITAL

SHAREHOLDERS’ EQUITY AND PARTNERS’ CAPITAL

MGP shareholders

Issuance of Class A shares - March 2021. On March 15, 2021, the Company completed an offering of 21.9 million Class A shares in a registered public offering for net proceeds of approximately $676.0 million.

Operating Partnership capital

Proceeds from the issuance of Class A shares by MGP - March 2021. On March 15, 2021, in connection with the Company’s registered offering of Class A shares for net proceeds of approximately $676.0 million, such proceeds were used in connection with satisfying the Company’s obligations under the notice of redemption of Operating Partnership units from MGM, discussed below.

Redemption of Operating Partnership units - March 2021. In March 2021, certain subsidiaries of MGM delivered a notice of redemption to the Company covering approximately 37.1 million Operating Partnership units that they held in accordance with the terms of the Operating Partnership’s partnership agreement. In accordance with the terms of such agreement, upon receipt of the notice of redemption, the Company formed a conflicts committee to determine the mix of consideration that it would provide for the Operating Partnership units. The conflicts committee determined that the Company would redeem approximately 15.3 million Operating Partnership units for cash on March 12, 2021 (with such Operating Partnership units retired upon redemption) and would satisfy its remaining obligation under that notice covering the remaining 21.9 million Operating Partnership units using the proceeds, net of underwriters’ discount, from an offering of MGP’s Class A shares on March 15, 2021, for aggregate cash proceeds paid of approximately $1.2 billion. As a result of these collective transactions, MGP’s indirect ownership percentage in the Operating Partnership increased from 47.0% to 57.9%.

Accumulated Other Comprehensive Loss. Comprehensive income (loss) includes net income (loss) and all other non-shareholder changes in equity, or other comprehensive income (loss). Elements of the Company’s accumulated other comprehensive loss are reported in the accompanying condensed consolidated statement of shareholders’ equity. The following table summarizes the changes in accumulated other comprehensive loss by component:

	Cash Flow Hedges		Other		Total
	(in thousands)
Balance at December 31, 2020	$	(40,063)	$	(11,134)	$	(51,197)
Other comprehensive income before reclassifications	11,961		—		11,961
Amounts reclassified from accumulated other comprehensive loss to interest expense	4,618		—		4,618
Other comprehensive income	16,579		—		16,579
Other changes in accumulated other comprehensive loss:
Issuance of Class A shares	—		(3,693)		(3,693)
Redemption of Operating Partnership Units	—		(6,860)		(6,860)
Other	—		(2)		(2)
Changes in accumulated other comprehensive loss:	16,579		(10,555)		6,024
Less: Other comprehensive income attributable to noncontrolling interest	(8,380)		—		(8,380)
Balance at March 31, 2021	$	(31,864)	$	(21,689)	$	(53,553)

MGP dividends and Operating Partnership distributions. The Operating Partnership declares and pays distributions. MGP pays its dividends with the receipt of its share of the Operating Partnership’s distributions.

On April 15, 2021, the Company paid a dividend of $0.4950 per Class A share upon receipt of its share of the Operating Partnership’s distribution of $0.4950 per unit made the same day.

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Earnings Per Class A Share

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

EARNINGS PER CLASS A SHARE

EARNINGS PER CLASS A SHARE

The table below provides earnings and the number of Class A shares used in the computations of “basic” earnings per share, which utilizes the weighted-average number of Class A shares outstanding without regard to dilutive potential Class A shares, and “diluted” earnings per share, which includes all such shares. Diluted earnings per Class A share does not assume conversion of the Operating Partnership units held by MGM as such conversion would be antidilutive. Earnings per share has not been presented for the Class B shareholder as the Class B share is not entitled to any economic rights in the Company.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to Class A shares - basic and diluted	$	59,598	$	(49,748)
Denominator:
Weighted average Class A shares outstanding — basic (1)	135,709		123,259
Effect of dilutive shares for diluted net income per Class A share (2)	227		—
Weighted average Class A shares outstanding — diluted (1)	135,936		123,259

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

EARNINGS PER OPERATING PARTNERSHIP UNIT

The table below provides earnings and the number of Operating Partnership units used in the computations of “basic” earnings per Operating Partnership unit, which utilizes the weighted-average number of Operating Partnership units outstanding without regard to dilutive potential Operating Partnership units, and “diluted” earnings per Operating Partnership units, which includes all such Operating Partnership units.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to unitholders - basic and diluted	$	115,409	$	(125,322)
Denominator:
Weighted average Operating Partnership units outstanding — basic (1)	276,692		324,310
Effect of dilutive shares for diluted net income per Operating Partnership unit (2)	227		—
Weighted average Operating Partnership units outstanding — diluted (1)	276,919		324,310

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

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Earnings Per Operating Partnership Unit

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

EARNINGS PER OPERATING PARTNERSHIP UNIT

EARNINGS PER CLASS A SHARE

The table below provides earnings and the number of Class A shares used in the computations of “basic” earnings per share, which utilizes the weighted-average number of Class A shares outstanding without regard to dilutive potential Class A shares, and “diluted” earnings per share, which includes all such shares. Diluted earnings per Class A share does not assume conversion of the Operating Partnership units held by MGM as such conversion would be antidilutive. Earnings per share has not been presented for the Class B shareholder as the Class B share is not entitled to any economic rights in the Company.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to Class A shares - basic and diluted	$	59,598	$	(49,748)
Denominator:
Weighted average Class A shares outstanding — basic (1)	135,709		123,259
Effect of dilutive shares for diluted net income per Class A share (2)	227		—
Weighted average Class A shares outstanding — diluted (1)	135,936		123,259

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

EARNINGS PER OPERATING PARTNERSHIP UNIT

The table below provides earnings and the number of Operating Partnership units used in the computations of “basic” earnings per Operating Partnership unit, which utilizes the weighted-average number of Operating Partnership units outstanding without regard to dilutive potential Operating Partnership units, and “diluted” earnings per Operating Partnership units, which includes all such Operating Partnership units.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to unitholders - basic and diluted	$	115,409	$	(125,322)
Denominator:
Weighted average Operating Partnership units outstanding — basic (1)	276,692		324,310
Effect of dilutive shares for diluted net income per Operating Partnership unit (2)	227		—
Weighted average Operating Partnership units outstanding — diluted (1)	276,919		324,310

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

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Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIESLitigation. In the ordinary course of business, from time to time, the Company expects to be subject to legal claims and administrative proceedings, none of which are currently outstanding, which the Company believes could have, individually or in the aggregate, a material adverse effect on its business, financial position, results of operations, or cash flows.

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Summary of Significant Accounting Policies - (Policies)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Basis of presentation

Basis of presentation. The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information set forth in the Accounting Standards Codification (“ASC”), as published by the Financial Accounting Standards Board (“FASB”), and with the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. All adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of results for the interim period have been included.

The accompanying condensed consolidated financial statements and related notes should be read in conjunction with the audited financial statements and notes thereto included in the Company’s most recent Annual Report on Form 10-K.

Principles of consolidation

Principles of consolidation. The Company identifies entities for which control is achieved through means other than voting rights and to determine which business enterprise is the primary beneficiary of variable interest entities (“VIE”). A VIE is an entity in which either (i) the equity investors as a group, if any, lack the power through voting or similar rights to direct the activities of such entity that most significantly impact such entity’s economic performance or (ii) the equity investment at risk is insufficient to finance that entity’s activities without additional subordinated financial support. The Company identifies the primary beneficiary of a VIE as the enterprise that has both of the following characteristics: (i) the power to direct the activities

of the VIE that most significantly impact the entity’s economic performance; and (ii) the obligation to absorb losses or receive benefits of the VIE that could potentially be significant to the entity. The Company consolidates its investment in a VIE when it determines that it is its primary beneficiary. The Company may change its original assessment of a VIE upon subsequent events such as the modification of contractual arrangements that affect the characteristics or adequacy of the entity’s equity investments at risk and the disposition of all or a portion of an interest held by the primary beneficiary. The Company performs this analysis on an ongoing basis. The consolidated financial statements of MGP include the accounts of the Operating Partnership, a VIE of which the Company is the primary beneficiary, as well as its wholly owned and majority-owned subsidiaries, which represents all of MGP’s assets and liabilities. As MGP holds what is deemed a majority voting interest in the Operating Partnership through its ownership of the Operating Partnership’s sole general partner, it qualifies for the exemption from providing certain of the required disclosures associated with investments in VIEs. The consolidated financial statements of the Operating Partnership include the accounts of its wholly owned subsidiary, MGP Lessor LLC, which is the MGM-MGP Master Lease landlord, a VIE of which the Operating Partnership is the primary beneficiary. As of March 31, 2021, on a consolidated basis, MGP Lessor, LLC had total assets of $9.1 billion primarily related to its real estate investments, and total liabilities of $543.9 million primarily related to its deferred revenue and operating lease liabilities.

For entities determined not to be VIEs, the Company consolidates such entities in which the Company owns 100% of the equity. For entities in which the Company owns less than 100% of the equity interest, the Company consolidates the entity under the voting interest model if it has controlling financial interest based upon the terms of the respective entities’ ownership agreements. If the entity does not qualify for consolidation under the voting interest model and the Company has significant influence over the operating and financial decisions of the entity, the Company accounts for the entity under the equity method, such as the Company’s MGP BREIT Venture, which does not qualify for consolidation as the Company has joint control, given the entity is structured with substantive participating rights whereby both owners participate in the decision making process which prevents the Company from exerting a controlling financial interest, as defined in ASC 810.

Noncontrolling interest

Noncontrolling interest. MGP presents noncontrolling interest and classifies such interest as a component of consolidated shareholders’ equity, separate from the Company’s Class A shareholders’ equity. Noncontrolling interest in MGP represents Operating Partnership units currently held by subsidiaries of MGM. Comprehensive income or loss of the Operating Partnership is allocated to its noncontrolling interest based on the noncontrolling interest’s ownership percentage in the Operating Partnership except for income tax expenses. Ownership percentage is calculated by dividing the number of Operating Partnership units held by the noncontrolling interest by the total Operating Partnership units held by the noncontrolling interest and the Company. Issuance of additional Class A shares and Operating Partnership units changes the ownership interests of both the noncontrolling interest and the Company. Such transactions and the related proceeds are treated as capital transactions.

MGM may tender its Operating Partnership units for redemption in exchange for cash equal to the market price of MGP’s Class A shares at the time of redemption or for unregistered Class A shares on a one-for-one basis. Such election to pay cash or issue Class A shares to satisfy an Operating Partnership unitholder’s redemption request is solely within the control of MGP’s independent conflicts committee.

Redeemable noncontrolling interest and redeemable capital

Redeemable noncontrolling interest and redeemable capital. On January 14, 2020 the Operating Partnership agreed to waive its right following the closing of the MGP BREIT Venture Transaction to issue MGP Class A shares, in lieu of cash, to settle redemptions of Operating Partnership units held by MGM up to a maximum cash redemption amount of $1.4 billion. In connection with the waiver, the Operating Partnership and the Company reclassified, from permanent equity to temporary equity, the carrying value of Operating Partnership units that could require cash redemption and remeasured the units to their redemption value. The Operating Partnership units that comprised the $1.4 billion redemption amount were determined based on a 3% discount to the ten-day average closing price prior to the date of determination.

At each subsequent reporting period, the carrying value of temporary equity was remeasured to the greater of: (1) the carrying value of the number of units then considered redeemable, inclusive of the comprehensive income and losses attributed based on a per unit or share basis in accordance with ASC 810 or (2) the redemption value of the number of units that are then redeemable based on the remaining aggregate cash redemption amount and the per share redemption value, except that decreases in the per unit or share redemption were limited to the amount of previous increases, with the differences between the carrying value and the remeasured value being recorded as an adjustment in additional paid-in capital (in lieu of retained earnings) or limited partners’ capital.

The $1.4 billion maximum cash redemption amount was fulfilled by the $700 million redeemed on May 18, 2020 and the $700 million redeemed on December 2, 2020.

Property transactions, net

Property transactions, net. Property transactions, net are comprised of transactions related to long-lived assets, such as gains and losses on the disposition of assets.

Fair value measurements

Fair value measurements. Fair value measurements are utilized in the accounting and impairment assessments of the Company’s real estate investments, investment in unconsolidated affiliate, and certain of its financial assets and liabilities. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and is measured according to a hierarchy that includes: Level 1 inputs, such as quoted prices in an active market; Level 2 inputs, which are observable inputs for similar assets; or Level 3 inputs, which are unobservable inputs. The Company used the following inputs in its fair value measurements:

•Level 2 inputs for its debt fair value disclosures. See Note 6; and

•Level 2 inputs when measuring the fair value of its interest rate swaps. See Note 7.

Reportable segment

Reportable segment. The Company’s operations consist of investments in real estate, both wholly-owned and through its investment in MGP BREIT Venture, for which all such real estate properties are similar to one another in that they consist of large-scale destination entertainment and leisure properties and related offerings, whose tenants generally offer casino gaming, hotel, convention, dining, entertainment and retail amenities, have similar economic characteristics and are governed by triple-net operating leases. The operating results of the Company’s wholly owned and equity method real estate investments are regularly reviewed, in the aggregate, by the chief operating decision maker. As such, the Company has one reportable segment.

Income tax provision

Income tax provision. For interim income tax reporting, the Company estimates its annual effective tax rate and applies it to its year-to-date ordinary income. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur. The Company’s effective income tax rate was a provision of 2.4% on income before income taxes and a provision of 0.9% on loss before income taxes for the three months ended March 31, 2021 and 2020, respectively.

The Company and MGM join in the filing of a New Jersey consolidated corporation business tax return and have entered into a tax sharing agreement which provides for an allocation of taxes due in the consolidated New Jersey return. No amounts were due to MGM under the tax sharing agreement between the Company and MGM as of March 31, 2021 or December 31, 2020.

Recently issued accounting standards

Recently issued accounting standards. In March 2020, the FASB issued ASC 848, “Reference Rate Reform (Topic 848)”. ASC 848 provides optional expedients for applying U.S. GAAP to reference rate reform related contracts, hedging relationships and other qualifying transactions. Application of these expedients preserve the presentation of derivative instruments consistent with past presentation. The guidance is optional and may be elected when or as reference rate reform activities occur. The Company is currently evaluating whether it will elect practical expedients if and when its hedging and related activities are impacted.

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Summary of Significant Accounting Policies - (Tables)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Redeemable Noncontrolling Interest

The components of equity that related to the Company’s redeemable noncontrolling interest and the Operating Partnership’s redeemable capital during the quarter ended March 31, 2020 were as follows:

(in thousands)
As of January 1, 2020	$	—
Reclassification and remeasurement adjustments	1,599,319
Attribution of:
Net loss	(16,536)
Proceeds from the issuance of Class A shares by MGP	18,418
MGP BREIT Venture Transaction	16,136
Cash flow hedges	(12,800)
Share-based compensation	105
Deemed contribution - tax sharing agreement	251
MGP dividends and Operating Partnership distributions declared	(21,289)
Other	(48)
As of March 31, 2020	$	1,583,556

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Real Estate Investments - (Tables)

3 Months Ended

Mar. 31, 2021

Real Estate [Abstract]

Carrying Value of Real Estate Investments

The carrying value of real estate investments is as follows:

	March 31, 2021		December 31, 2020
	(in thousands)
Land	$	3,431,228	$	3,431,228
Buildings, building improvements, land improvements and integral equipment	7,424,820		7,426,110
	10,856,048		10,857,338
Less: Accumulated depreciation	(2,604,091)		(2,546,601)
	$	8,251,957	$	8,310,737

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Investment in Unconsolidated Affiliate - (Tables)

3 Months Ended

Mar. 31, 2021

Equity Method Investments and Joint Ventures [Abstract]

Summary of Equity Method Investments

Summarized results of operations of MGP BREIT Venture are as follows:

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Net revenues	$	98,681	$	50,437
Net income	50,869		26,675

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Leases - (Tables)

3 Months Ended

Mar. 31, 2021

Leases [Abstract]

Lessor, Operating Lease Minimum Rental Payments

Under the MGM-MGP Master Lease, future non-cancelable minimum cash rental payments, which are the payments under the initial 10-year term through April 30, 2026 and do not include the four five-year renewal options and, with respect to MGM National Harbor, through August 31, 2024, are as follows as of March 31, 2021:

Year ending December 31,	(in thousands)
2021 (excluding the three months ended March 31, 2021)	$	632,071
2022	784,336
2023	764,861
2024	733,161
2025	669,761
Thereafter	223,254
Total	$	3,807,444

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Debt - (Tables)

3 Months Ended

Mar. 31, 2021

Debt Disclosure [Abstract]

Debt

Debt consists of the following:

	March 31,		December 31,
	2021		2020
	(in thousands)
Senior secured revolving credit facility	$	500	$	10,000
5.625% senior notes, due 2024	1,050,000		1,050,000
4.625% senior notes, due 2025	800,000		800,000
4.50% senior notes, due 2026	500,000		500,000
5.75% senior notes, due 2027	750,000		750,000
4.50% senior notes, due 2028	350,000		350,000
3.875% senior notes, due 2029	750,000		750,000
	4,200,500		4,210,000
Less: Unamortized discount and debt issuance costs	(39,061)		(41,041)
	$	4,161,439	$	4,168,959

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Derivatives and Hedging Activities - (Tables)

3 Months Ended

Mar. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Interest Rate Derivatives

The interest rate swaps as of March 31, 2021 are summarized in the table below.

	Notional Amount		Weighted Average Fixed Rate		Fair Value Liability		Effective Date	Maturity Date
	(in thousands, except percentages)
Derivatives designated as hedges:
	$	900,000	1.801	%	$	(29,170)	November 30, 2021	December 31, 2024
	$	900,000			$	(29,170)
Derivatives not designated as hedges:
	$	1,200,000	1.844	%	$	(13,879)	May 3, 2017	November 30, 2021
	300,000		1.158	%	(6,145)		September 6, 2019	December 31, 2024
	400,000		2.252	%	(22,710)		October 1, 2019	December 31, 2029
	$	1,900,000			$	(42,734)
					$	(71,904)

The interest rate swaps as of December 31, 2020 are summarized in the table below.

	Notional Amount		Weighted Average Fixed Rate		Fair Value Liability		Effective Date	Maturity Date
	(in thousands, except percentages)
Derivatives designated as hedges:
	$	900,000	1.801	%	$	(41,131)	November 30, 2021	December 31, 2024
	$	900,000			$	(41,131)
Derivatives not designated as hedges:
	$	1,200,000	1.844	%	$	(18,889)	May 3, 2017	November 30, 2021
	300,000		1.158	%	(10,451)		September 6, 2019	December 31, 2024
	400,000		2.252	%	(48,453)		October 1, 2019	December 31, 2029
	$	1,900,000			$	(77,793)
					$	(118,924)

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Shareholders' Equity and Partners' Capital - (Tables)

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Changes in Accumulated Other Comprehensive Income

The following table summarizes the changes in accumulated other comprehensive loss by component:

	Cash Flow Hedges		Other		Total
	(in thousands)
Balance at December 31, 2020	$	(40,063)	$	(11,134)	$	(51,197)
Other comprehensive income before reclassifications	11,961		—		11,961
Amounts reclassified from accumulated other comprehensive loss to interest expense	4,618		—		4,618
Other comprehensive income	16,579		—		16,579
Other changes in accumulated other comprehensive loss:
Issuance of Class A shares	—		(3,693)		(3,693)
Redemption of Operating Partnership Units	—		(6,860)		(6,860)
Other	—		(2)		(2)
Changes in accumulated other comprehensive loss:	16,579		(10,555)		6,024
Less: Other comprehensive income attributable to noncontrolling interest	(8,380)		—		(8,380)
Balance at March 31, 2021	$	(31,864)	$	(21,689)	$	(53,553)

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Earnings Per Class A Share - (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Earnings and Number of Class A Shares Used in the Calculation of Basic and Diluted Income Per Share

The table below provides earnings and the number of Class A shares used in the computations of “basic” earnings per share, which utilizes the weighted-average number of Class A shares outstanding without regard to dilutive potential Class A shares, and “diluted” earnings per share, which includes all such shares. Diluted earnings per Class A share does not assume conversion of the Operating Partnership units held by MGM as such conversion would be antidilutive. Earnings per share has not been presented for the Class B shareholder as the Class B share is not entitled to any economic rights in the Company.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to Class A shares - basic and diluted	$	59,598	$	(49,748)
Denominator:
Weighted average Class A shares outstanding — basic (1)	135,709		123,259
Effect of dilutive shares for diluted net income per Class A share (2)	227		—
Weighted average Class A shares outstanding — diluted (1)	135,936		123,259

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

The table below provides earnings and the number of Operating Partnership units used in the computations of “basic” earnings per Operating Partnership unit, which utilizes the weighted-average number of Operating Partnership units outstanding without regard to dilutive potential Operating Partnership units, and “diluted” earnings per Operating Partnership units, which includes all such Operating Partnership units.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to unitholders - basic and diluted	$	115,409	$	(125,322)
Denominator:
Weighted average Operating Partnership units outstanding — basic (1)	276,692		324,310
Effect of dilutive shares for diluted net income per Operating Partnership unit (2)	227		—
Weighted average Operating Partnership units outstanding — diluted (1)	276,919		324,310

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

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Earnings Per Operating Partnership Unit - (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Net Income and Number of Operating Partnership Units Used in the Calculation of Basic and Diluted Income Per Share

The table below provides earnings and the number of Class A shares used in the computations of “basic” earnings per share, which utilizes the weighted-average number of Class A shares outstanding without regard to dilutive potential Class A shares, and “diluted” earnings per share, which includes all such shares. Diluted earnings per Class A share does not assume conversion of the Operating Partnership units held by MGM as such conversion would be antidilutive. Earnings per share has not been presented for the Class B shareholder as the Class B share is not entitled to any economic rights in the Company.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to Class A shares - basic and diluted	$	59,598	$	(49,748)
Denominator:
Weighted average Class A shares outstanding — basic (1)	135,709		123,259
Effect of dilutive shares for diluted net income per Class A share (2)	227		—
Weighted average Class A shares outstanding — diluted (1)	135,936		123,259

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

The table below provides earnings and the number of Operating Partnership units used in the computations of “basic” earnings per Operating Partnership unit, which utilizes the weighted-average number of Operating Partnership units outstanding without regard to dilutive potential Operating Partnership units, and “diluted” earnings per Operating Partnership units, which includes all such Operating Partnership units.

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Numerator:
Net income (loss) attributable to unitholders - basic and diluted	$	115,409	$	(125,322)
Denominator:
Weighted average Operating Partnership units outstanding — basic (1)	276,692		324,310
Effect of dilutive shares for diluted net income per Operating Partnership unit (2)	227		—
Weighted average Operating Partnership units outstanding — diluted (1)	276,919		324,310

(1) Includes weighted average deferred share units granted to certain members of the board of directors.

(2) Less than 0.1 million and 0.3 million shares related to outstanding share-based compensation awards were excluded due to being antidilutive for the three months ended March 31, 2021 and 2020, respectively.

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Business - Narrative (Details) - USD ($) $ in Billions	1 Months Ended	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2021	Dec. 31, 2020	Feb. 29, 2020
MGP Operating Partnership
Business And Organization [Line Items]
Operating partnership units outstanding (in shares)	264,696,637	264,696,637	279,966,531
MGP Operating Partnership | Subsidiaries
Business And Organization [Line Items]
Operating Partnership units redeemed (in units)	37,100,000
Aggregate proceeds from redemption of equity	$ 1.2
Exchange of Operating Partnership Units to MGP's Class A Shares
Business And Organization [Line Items]
Operating partnership unit conversion ratio		1
MGP Operating Partnership
Business And Organization [Line Items]
Operating partnership units outstanding (in shares)	264,700,000	264,700,000
Ownership percentage acquired ( as a percent )		57.90%
Aggregate proceeds from redemption of equity	$ 1.2
MGP Operating Partnership | MGM
Business And Organization [Line Items]
Operating partnership units held (in shares)		111,400,000
Ownership interest in operating partnership ( as a percent )		42.10%
MGP BREIT Venture Transaction | MGP Operating Partnership
Business And Organization [Line Items]
Controlling interest, ownership percentage				50.10%
MGP BREIT Venture Transaction | Blackstone Real Estate Income Trust, Inc.
Business And Organization [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners				49.90%

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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands				3 Months Ended
	Dec. 02, 2020 USD ($)	May 18, 2020 USD ($)	Jan. 14, 2020 USD ($)	Mar. 31, 2021 USD ($) segment	Mar. 31, 2020	Dec. 31, 2020 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Maximum exposure to loss, assets				$ 10,062,225		$ 10,600,306
Maximum exposure to loss, liabilities				4,972,394		$ 5,009,564
Redemption of Operating Partnership units				$ 1,181,276
Number of segments | segment				1
Effective tax rate				2.40%	0.90%
MGP Operating Partnership
Summary Of Significant Accounting Policies [Line Items]
Partnership agreement, purchase agreement covenant, operating unit redemption, consideration amount			$ 1,400,000
Partnership agreement, purchase agreement covenant, discount rate			3.00%
Redemption of Operating Partnership units	$ 700,000	$ 700,000
Variable Interest Entity | MGP Operating Partnership
Summary Of Significant Accounting Policies [Line Items]
Maximum exposure to loss, assets				$ 9,100,000
Maximum exposure to loss, liabilities				$ 543,900
Exchange of Operating Partnership Units to MGP's Class A Shares
Summary Of Significant Accounting Policies [Line Items]
Operating partnership unit conversion ratio				1

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Summary of Significant Accounting Policies - Redeemable Noncontrolling Interest (Details) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) shares
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning balance	$ 0
Reclassification and remeasurement adjustments	1,599,319
Net loss	$ (16,536)
Proceeds from the issuance of Class A shares by MGP | shares	18,418
MGP BREIT Venture Transaction	$ 16,136
Cash flow hedges	(12,800)
Share-based compensation	105
Deemed contribution - tax sharing agreement	251
MGP dividends and Operating Partnership distributions declared	(21,289)
Other	(48)
Ending balance	$ 1,583,556

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Real Estate Investments - Carrying Value of Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Real Estate Properties [Line Items]
Real estate investments, gross	$ 10,856,048	$ 10,857,338
Less: Accumulated depreciation	(2,604,091)	(2,546,601)
Real estate investments, net	8,251,957	8,310,737
Land
Real Estate Properties [Line Items]
Real estate investments, gross	3,431,228	3,431,228
Buildings, building improvements, land improvements and integral equipment
Real Estate Properties [Line Items]
Real estate investments, gross	$ 7,424,820	$ 7,426,110

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Investment in Unconsolidated Affiliate - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Schedule of Equity Method Investments [Line Items]
Income from unconsolidated affiliate	$ 25,485	$ 13,363
Distributions from unconsolidated affiliate	15,161	12,181
MGP Operating Partnership
Schedule of Equity Method Investments [Line Items]
Income from unconsolidated affiliate	25,485	13,363
Distributions from unconsolidated affiliate	15,161	12,181
MGP Operating Partnership | MGP BREIT Venture | Financial Guarantee
Schedule of Equity Method Investments [Line Items]
Guarantee for losses	$ 3,000,000
Guarantee cap	10.00%
MGP Operating Partnership | MGP BREIT Venture | Property Lease Guarantee
Schedule of Equity Method Investments [Line Items]
Guarantee cap	9.90%
Excess cash flow distribution	$ 16,000
MGP BREIT Venture | MGP Operating Partnership
Schedule of Equity Method Investments [Line Items]
Controlling interest, ownership percentage	50.10%
Income from unconsolidated affiliate	$ 25,500	13,400
Distributions from unconsolidated affiliate	$ 15,200	$ 12,200

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Investment in Unconsolidated Affiliate - MGP BREIT Venture Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Schedule of Equity Method Investments [Line Items]
Net income	$ 115,409	$ (125,322)
MGP BREIT Venture
Schedule of Equity Method Investments [Line Items]
Net revenues	98,681	50,437
Net income	$ 50,869	$ 26,675

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Leases - Narrative (Details) $ in Millions		3 Months Ended
	Apr. 01, 2021 USD ($)	Mar. 31, 2021 USD ($) numberOfExtension	Mar. 31, 2020 USD ($)
Leases [Line Items]
Number of lease extension options | numberOfExtension		4
Percent of rent payments, base rent		91.00%
Percent of rent payment, percentage rent		9.00%
Adjusted net revenue to rent ratio		625.00%
Initial period of fixed rent remaining term		6 years
Subsequent period of variable rent amount		5 years
Annual cash rent amount		$ 827.8
Tenant Reimbursements
Leases [Line Items]
Operating lease, lease income		$ 6.0	$ 6.0
Master Lease
Leases [Line Items]
Initial lease term (in years)		10 years
Number of lease extension options | numberOfExtension		4
Lease extension term		5 years
Master Lease | Rental Properties
Leases [Line Items]
Operating lease, lease income		$ 188.3	$ 203.5
Master Lease Base Rent
Leases [Line Items]
Lessor, operating lease, variable lease payment, annual rent escalator		2.00%
Master Lease Base Rent | Subsequent Event
Leases [Line Items]
Annual contractual rent growth rate	2.00%
Increase in rent payments due under master lease	$ 764.9
Annual rent	$ 842.8
Master Lease Percentage Rent
Leases [Line Items]
Operating leases fixed amount adjustment multiplier		1.40%

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Leases - Operating Lease Minimum Rental Payments (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Leases [Abstract]
2021 (excluding the three months ended March 31, 2021)	$ 632,071
2022	784,336
2023	764,861
2024	733,161
2025	669,761
Thereafter	223,254
Total	$ 3,807,444

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Debt - Debt Outstanding (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt	$ 4,200,500	$ 4,210,000
Less: Unamortized discount and debt issuance costs	(39,061)	(41,041)
Long-term debt, net	4,161,439	4,168,959
Senior secured revolving credit facility | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility	$ 500	10,000
5.625% senior notes, due 2024 | Senior Notes
Debt Instrument [Line Items]
Interest rate	5.625%
Senior notes	$ 1,050,000	1,050,000
4.625% senior notes, due 2025 | Senior Notes
Debt Instrument [Line Items]
Interest rate	4.625%
Senior notes	$ 800,000	800,000
4.50% senior notes, due 2026 | Senior Notes
Debt Instrument [Line Items]
Interest rate	4.50%
Senior notes	$ 500,000	500,000
5.75% senior notes, due 2027 | Senior Notes
Debt Instrument [Line Items]
Interest rate	5.75%
Senior notes	$ 750,000	750,000
4.50% senior notes, due 2028 | Senior Notes
Debt Instrument [Line Items]
Interest rate	4.50%
Senior notes	$ 350,000	350,000
3.875% senior notes, due 2029 | Senior Notes
Debt Instrument [Line Items]
Interest rate	3.875%
Senior notes	$ 750,000	$ 750,000

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Debt - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Estimated fair value of long-term debt	$ 4,400,000,000	$ 4,500,000,000
Line of Credit
Debt Instrument [Line Items]
Letters of credit outstanding	$ 0
Revolving Credit Facility | Senior Secured Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Variable margin	4.00%
Letter of Credit | Line of Credit
Debt Instrument [Line Items]
Borrowing capacity under credit facility	$ 75,000,000
MGP Operating Partnership | Revolving Credit Facility | Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity under credit facility	$ 1,400,000,000

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Derivatives and Hedging Activities - Schedule of Interest Rate Derivatives (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Fair Value Liability	$ (71,904)	$ (118,924)
Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	900,000	900,000
Fair Value Liability	(29,170)	(41,131)
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 1,900,000	$ 1,900,000
Weighted Average Fixed Rate
Fair Value Liability	$ (42,734)	$ (77,793)
Interest Rate Swap Effective Nov 30, 2021 | Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 900,000	$ 900,000
Weighted Average Fixed Rate	1.801%	1.801%
Fair Value Liability	$ (29,170)	$ (41,131)
Interest Rate Swap Effective May 3, 2017 | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 1,200,000	$ 1,200,000
Weighted Average Fixed Rate	1.844%	1.844%
Fair Value Liability	$ (13,879)	$ (18,889)
Interest Rate Swap Effective Sep 6, 2019 | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 300,000	$ 300,000
Weighted Average Fixed Rate	1.158%	1.158%
Fair Value Liability	$ (6,145)	$ (10,451)
Interest Rate Swap Effective Oct 1, 2019 | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 400,000	$ 400,000
Weighted Average Fixed Rate	2.252%	2.252%
Fair Value Liability	$ (22,710)	$ (48,453)

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Shareholders' Equity and Partners' Capital - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended
	Apr. 15, 2021	Mar. 15, 2021	Mar. 31, 2021	Mar. 14, 2021
MGP Operating Partnership
Class of Stock [Line Items]
Operating Partnership units redeemed using proceeds from share issuances (in units)			21,900,000
Aggregate proceeds from redemption of equity			$ 1,200.0
Ownership percentage		57.90%		47.00%
MGP Operating Partnership | Operating Partnership Units
Class of Stock [Line Items]
Operating Partnership units redeemed (in units)			37,100,000
Operating Partnership units redeemed using cash (in units)			15,300,000
Class A Shares | Subsequent Event
Class of Stock [Line Items]
Dividends (in dollars per share)	$ 0.4950
Dividends (in dollars per share)	$ 0.4950
Public Stock Offering | Class A Shares
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)		21,900,000
Sale of stock, consideration received on transaction		$ 676.0

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Shareholders' Equity and Partners' Capital - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
AOCI [Roll Forward]
Beginning Balance	$ 5,590,742	$ 6,898,012
Other comprehensive loss before reclassifications	11,961
Amounts reclassified from accumulated other comprehensive income to interest expense	4,618
Other comprehensive income (loss)	16,579	(95,320)
Issuance of Class A shares	(3,693)
Redemption of Operating Partnership Units	(1,181,276)
Other	(276)	40	[1]
Changes in accumulated other comprehensive income:	6,024
Less: Other comprehensive income attributable to noncontrolling interest	(8,380)
Ending Balance	5,089,831	5,541,861
AOCI Attributable to Parent
AOCI [Roll Forward]
Beginning Balance	(51,197)	(7,045)
Other comprehensive income (loss)	8,199
Redemption of Operating Partnership Units	(6,860)
Other	(2)
Ending Balance	(53,553)	$ (45,163)
Cash Flow Hedges Attributable to Parent
AOCI [Roll Forward]
Beginning Balance	(40,063)
Ending Balance	(31,864)
Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest
AOCI [Roll Forward]
Other comprehensive loss before reclassifications	11,961
Amounts reclassified from accumulated other comprehensive income to interest expense	4,618
Other comprehensive income (loss)	16,579
Issuance of Class A shares	0
Redemption of Operating Partnership Units	0
Other	0
Changes in accumulated other comprehensive income:	16,579
Cash Flow Hedges Including Noncontrolling Interest
AOCI [Roll Forward]
Less: Other comprehensive income attributable to noncontrolling interest	(8,380)
Other Attributable to Parent
AOCI [Roll Forward]
Beginning Balance	(11,134)
Ending Balance	(21,689)
Other Including Portion Attributable to Noncontrolling Interest
AOCI [Roll Forward]
Other comprehensive loss before reclassifications	0
Amounts reclassified from accumulated other comprehensive income to interest expense	0
Other comprehensive income (loss)	0
Issuance of Class A shares	(3,693)
Redemption of Operating Partnership Units	(6,860)
Other	(2)
Changes in accumulated other comprehensive income:	(10,555)
Other Attributable to Noncontrolling Interest
AOCI [Roll Forward]
Less: Other comprehensive income attributable to noncontrolling interest	0
MGP Operating Partnership
AOCI [Roll Forward]
Other comprehensive income (loss)	$ 16,579

[1] Excludes amounts attributable to redeemable noncontrolling interest. See Note 2.

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Earnings Per Class A Share (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income (loss) attributable to Class A shares - basic and diluted	$ 59,598	$ (49,748)
Denominator:
Weighted average Class A shares outstanding - basic (in shares)	135,709,000	123,259,000
Effect of dilutive shares for diluted net income per Class A share (in shares)	227,000	0
Weighted average Class A shares outstanding - diluted (in shares)	135,936,000	123,259,000
Stock Compensation Plan
Denominator:
Potentially dilutive shares (in shares)	100,000	300,000

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Earnings Per Operating Partnership Unit (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Denominator:
Effect of dilutive shares for diluted net income per Class A share (in shares)	227,000	0
Stock Compensation Plan
Denominator:
Potentially dilutive shares (in shares)	100,000	300,000
MGP Operating Partnership
Numerator:
Net income (loss) attributable to unitholders - basic and diluted	$ 115,409	$ (125,322)
Denominator:
Weighted average Operating Partnership units outstanding - basic (in shares)	276,692,000	324,310,000
Effect of dilutive shares for diluted net income per Class A share (in shares)	227,000	0
Weighted average Operating Partnership units outstanding - diluted (in shares)	276,919,000	324,310,000
MGP Operating Partnership | Stock Compensation Plan
Denominator:
Potentially dilutive shares (in shares)	100,000	300,000