Net Income Per Common Share and Net Income Per Common Unit (Tables)

6 Months Ended

Jun. 30, 2018

Net Income Per Share and Net Income Per Unit [Line Items]

Schedule of net income per common share

Essex Property Trust, Inc.

	Three Months Ended June 30, 2018					Three Months Ended June 30, 2017
	Income		Weighted- average Common Shares	Per Common Share Amount		Income		Weighted- average Common Shares	Per Common Share Amount
Basic:
Net income available to common stockholders	$	100,440	66,047,751	$	1.52	$	70,759	65,729,074	$	1.08
Effect of Dilutive Securities:
Stock options	—		48,598			—		90,620
Diluted:
Net income available to common stockholders	$	100,440	66,096,349	$	1.52	$	70,759	65,819,694	$	1.08

	Six Months Ended June 30, 2018					Six Months Ended June 30, 2017
	Income		Weighted- average Common Shares	Per Common Share Amount		Income		Weighted- average Common Shares	Per Common Share Amount
Basic:
Net income available to common stockholders	$	191,358	66,045,897	$	2.90	$	249,723	65,639,775	$	3.80
Effect of Dilutive Securities:
Stock options	—		42,906			—		91,515
DownREIT units	—		—			738		210,728
Diluted:
Net income available to common stockholders	$	191,358	66,088,803	$	2.90	$	250,461	65,942,018	$	3.80

Essex Portfolio, L.P. [Member]

Net Income Per Share and Net Income Per Unit [Line Items]

Schedule of net income per common share

Essex Portfolio, L.P.

	Three Months Ended June 30, 2018					Three Months Ended June 30, 2017
	Income		Weighted- average Common Units	Per Common Unit Amount		Income		Weighted- average Common Units	Per Common Unit Amount
Basic:
Net income available to common unitholders	$	103,900	68,320,849	$	1.52	$	73,181	67,980,761	$	1.08
Effect of Dilutive Securities:
Stock options	—		48,598			—		90,620
Diluted:
Net income available to common unitholders	$	103,900	68,369,447	$	1.52	$	73,181	68,071,381	$	1.08

	Six Months Ended June 30, 2018					Six Months Ended June 30, 2017
	Income		Weighted- average Common Units	Per Common Unit Amount		Income		Weighted- average Common Units	Per Common Unit Amount
Basic:
Net income available to common unitholders	$	197,950	68,319,151	$	2.90	$	258,291	67,891,734	$	3.80
Effect of Dilutive Securities:
Stock options	—		42,906			—		91,515
DownREIT units	—		—			738		210,728
Diluted:
Net income available to common unitholders	$	197,950	68,362,057	$	2.90	$	259,029	68,193,977	$	3.80