MAA Equity (Tables)

3 Months Ended

Mar. 31, 2017

MAA Equity [Abstract]

Shareholders' Equity [Table Text Block]

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock Amount		Common Stock Amount		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Income (Loss)			Noncontrolling Interest Operating Partnership			Noncontrolling Interest - Consolidated Real Estate Entity		Total Equity
EQUITY BALANCE DECEMBER 31, 2015	$	—	$	753	$	3,627,074		$	(634,141	)	$	(1,589	)	$	165,726		$	—	$	3,157,823
Net income attributable to controlling interest	—		—		—			43,413			—			2,395			—		45,808
Other comprehensive loss - derivative instruments (cash flow hedges)	—		—		—			—			(2,387		)	(132		)	—		(2,519		)
Issuance and registration of common shares	—		1		89			—			—			—			—		90
Shares repurchased and retired	—		—		(1,730		)	—			—			—			—		(1,730		)
Shares issued in exchange for common units	—		—		33			—			—			(33		)	—		—
Shares issued in exchange for redeemable stock	—		—		123			—			—			—			—		123
Redeemable stock fair market value adjustment	—		—		—			(1,100		)	—			—			—		(1,100		)
Adjustment for noncontrolling interest ownership in operating partnership	—		—		40			—			—			(40		)	—		—
Amortization of unearned compensation	—		—		2,078			—			—			—			—		2,078
Dividends on common stock ($0.82 per share)	—		—		—			(61,928		)	—			—			—		(61,928		)
Dividends on noncontrolling interest units ($0.82 per unit)	—		—		—			—			—			(3,412		)	—		(3,412		)
EQUITY BALANCE MARCH 31, 2016	$	—	$	754	$	3,627,707		$	(653,756	)	$	(3,976	)	$	164,504		$	—	$	3,135,233

Changes in total equity and its components for the three-month periods ended March 31, 2017 and 2016 were as follows (dollars in thousands, except per share and per unit data):

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock Amount		Common Stock Amount		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Income (Loss)		Noncontrolling Interest Operating Partnership			Noncontrolling Interest - Consolidated Real Estate Entity		Total Equity
EQUITY BALANCE DECEMBER 31, 2016	$	9	$	1,133	$	7,109,012		$	(707,479	)	$	1,144	$	235,976		$	2,306	$	6,642,101
Net income attributable to controlling interest	—		—		—			41,905			—		1,511			—		43,416
Other comprehensive income - derivative instruments (cash flow hedges)	—		—		—			—			3,079		113			—		3,192
Issuance and registration of common shares	—		1		67			—			—		—			—		68
Issuance and registration of preferred shares	—		—		2,007			—			—		—			—		2,007
Shares repurchased and retired	—		—		(4,734		)	—			—		—			—		(4,734		)
Shares issued in exchange for common units	—		—		167			—			—		(167		)	—		—
Shares issued in exchange for redeemable stock	—		—		1,482			—			—		—			—		1,482
Redeemable stock fair market value adjustment	—		—		—			(298		)	—		—			—		(298		)
Adjustment for noncontrolling interest ownership in operating partnership	—		—		305			—			—		(305		)	—		—
Amortization of unearned compensation	—		—		3,139			(114		)	—		—			—		3,025
Dividends on preferred stock	—		—		—			(922		)	—		—			—		(922		)
Dividends on common stock ($0.87 per share)	—		—		—			(98,841		)	—		—			—		(98,841		)
Dividends on noncontrolling interest units ($0.87 per unit)	—		—		—			—			—		(3,664		)	—		(3,664		)
EQUITY BALANCE MARCH 31, 2017	$	9	$	1,134	$	7,111,445		$	(765,749	)	$	4,223	$	233,464		$	2,306	$	6,586,832