Consolidated Statement of Equity - USD ($)	Total	Redeemable Common Stock [Member]	Additional Paid-in Capital [Member]	Distributions [Member]	Accumulated Deficit [Member]	Strategic Student & Senior Housing Trust, Inc. [Member]	Noncontrolling Interests in our Operating Partnership [Member]	Preferred Equity in our Operating Partnership [Member]	Common Stock Class A [Member]	Common Stock Class T [Member]	Common Stock Class W [Member]
Beginning Balance at Dec. 31, 2016	$ 2,000		$ 1,000			$ 1,000	$ 1,000
Beginning Balance, shares at Dec. 31, 2016									111
Gross proceeds from issuance of common stock	75,289,070		75,280,158			75,289,070			$ 8,912
Gross proceeds from issuance of common stock, shares									8,911,969
Issuance of noncontrolling interest in our Operating Partnership	199,000						199,000
Offering costs	(6,481,858)		(6,481,858)			(6,481,858)
Distributions to common stockholders	(1,379,950)			$ (1,379,950)		(1,379,950)
Distributions for noncontrolling interest	(4,129)						(4,129)
Distributions to preferred unitholders in our Operating Partnership								$ (239,885)
Issuance of shares for distribution reinvestment plan	303,844		303,808			303,844			$ 36
Issuance of shares for distribution reinvestment plan (in shares)									36,471
Changes to redeemable common stock	(303,844)	$ 303,844	(303,844)			(303,844)
Net loss attributable to Strategic Student & Senior Housing Trust, Inc.	(6,233,945)				$ (6,233,945)	(6,233,945)		239,885
Net loss attributable to the noncontrolling interests in our Operating Partnership	(1,134,705)						(1,134,705)
Issuance of preferred equity in our Operating Partnership								6,655,500
Redemption of preferred equity in our Operating Partnership								(6,722,055)
Accretion of non-cash preferred equity issuance								66,555
Ending Balance at Dec. 31, 2017	60,255,483	303,844	68,799,264	(1,379,950)	(6,233,945)	61,194,317	(938,834)		$ 8,948
Ending Balance, shares at Dec. 31, 2017									8,948,551
Gross proceeds from issuance of common stock	18,282,435		18,280,442			18,282,435			$ 1,913	$ 36	$ 44
Gross proceeds from issuance of common stock, shares									1,913,442	36,250	43,830
Offering costs	(3,556,173)		(3,556,173)			(3,556,173)
Redemptions of common stock		(15,300)
Distributions to common stockholders	(6,601,688)			(6,601,688)		(6,601,688)
Distributions for noncontrolling interest	(15,842)						(15,842)
Distributions to preferred unitholders in our Operating Partnership								(317,541)
Issuance of shares for distribution reinvestment plan	2,371,110		2,370,857			2,371,110			$ 253
Issuance of shares for distribution reinvestment plan (in shares)									252,642	49	166
Issuance of restricted stock	8					8			$ 8
Issuance of restricted stock (in shares)									7,500
Stock based compensation expense	9,780		9,780			9,780
Changes to redeemable common stock	(2,371,110)	2,371,110	(2,371,110)			(2,371,110)
Net loss attributable to Strategic Student & Senior Housing Trust, Inc.	(16,029,733)				(16,029,733)	(16,029,733)		317,541
Net loss attributable to the noncontrolling interests in our Operating Partnership	(39,347)						(39,347)
Issuance of preferred equity in our Operating Partnership								10,064,950
Accretion of non-cash preferred equity issuance								30,758
Ending Balance at Dec. 31, 2018	$ 52,304,923	$ 2,659,654	$ 83,533,060	$ (7,981,638)	$ (22,263,678)	$ 53,298,946	$ (994,023)	$ 10,095,708	$ 11,122	$ 36	$ 44
Ending Balance, shares at Dec. 31, 2018									11,122,135	36,299	43,996