Combined and Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues
Rental revenue	$ 419,239	$ 0	$ 0
Tenant reimbursements and other	48,309	0	0
Revenues, net	467,548	0	0
Expenses
Depreciation	220,667	196,816	186,262
Property transactions, net	4,684	6,665	0
Property taxes	65,120	48,122	48,346
Property insurance	2,943	10,351	11,634
Amortization of above market lease, net	286	0	0
Acquisition-related expenses	10,178	0	0
General and administrative	9,896	0	0
Expenses, net	313,774	261,954	246,242
Operating income (loss)	153,774	(261,954)	(246,242)
Interest income	774	0	0
Interest expense	(116,212)	0	0
Other non-operating	(726)	0	0
Non-operating income (expense)	(116,164)	0	0
Income (loss) before income taxes	37,610	(261,954)	(246,242)
Provision for income taxes	(2,264)	0	0
Net income (loss)	35,346	(261,954)	(246,242)
Less: Net (income) loss attributable to noncontrolling interest	(5,408)	261,954	246,242
Net income attributable to Class A shareholders	$ 29,938	0	0
Weighted average shares outstanding
Basic (in shares)	57,502,158
Diluted (in shares)	57,751,489
Per Class A share data
Basis net income per Class A share (in usd per share)	$ 0.52
Diluted net income per Class A share (in usd per share)	$ 0.52
MGP Operating Partnership
Revenues
Rental revenue	$ 419,239	0	0
Tenant reimbursements and other	48,309	0	0
Revenues, net	467,548	0	0
Expenses
Depreciation	220,667	196,816	186,262
Property transactions, net	4,684	6,665	0
Property taxes	65,120	48,122	48,346
Property insurance	2,943	10,351	11,634
Amortization of above market lease, net	286	0	0
Acquisition-related expenses	10,178	0	0
General and administrative	9,896	0	0
Expenses, net	313,774	261,954	246,242
Operating income (loss)	153,774	(261,954)	(246,242)
Interest income	774	0	0
Interest expense	(116,212)	0	0
Other non-operating	(726)	0	0
Non-operating income (expense)	(116,164)	0	0
Income (loss) before income taxes	37,610	(261,954)	(246,242)
Provision for income taxes	(2,264)	0	0
Net income (loss)	$ 35,346	$ (261,954)	$ (246,242)
Per Operating Partnership unit data
Net income per Operating Partnership unit, basic (in usd per unit)	$ 0.52
Net income per Operating Partnership unit, diluted (in usd per unit)	$ 0.52