Consolidated Statements of Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Total Stratus Stockholders' Equity [Member]	Accumulated Deficit [Member]	Noncontrolling Interests in Subsidiaries [Member]	Common Stock [Member]	Capital in Excess of Par Value [Member]	Common Stock Held in Treasury [Member]
Balance at Dec. 31, 2018	$ 146,651	$ 123,986	$ (41,103)	$ 22,665	$ 93	$ 186,256	$ (21,260)
Balance (in shares) at Dec. 31, 2018					9,288		1,124
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards	0	0				0
Exercised and issued stock-based awards (in shares)					17
Stock-based compensation	168	168				168
Tender of shares for stock-based awards	(100)	(100)					$ (100)
Tender of shares for stock-based awards (in shares)							4
Comprehensive Income (Loss), Net of Tax, Attributable to Parent		862	862
Total comprehensive loss	862
Balance at Mar. 31, 2019	142,992	124,916	(40,241)	18,076	$ 93	186,424	$ (21,360)
Balance (in shares) at Mar. 31, 2019					9,305		1,128
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	(4,589)			(4,589)
Balance at Dec. 31, 2019	134,082	121,099	(43,567)	12,983	$ 93	186,082	$ (21,509)
Balance (in shares) at Dec. 31, 2019					9,330		1,133
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards	0	0				0
Exercised and issued stock-based awards (in shares)					17
Stock-based compensation	162	162				162
Tender of shares for stock-based awards	(91)	(91)					$ (91)
Tender of shares for stock-based awards (in shares)							4
Comprehensive Income (Loss), Net of Tax, Attributable to Parent		(1,070)	(1,070)
Total comprehensive loss	(2,147)
Balance at Mar. 31, 2020	$ 132,006	$ 120,100	$ (44,637)	11,906	$ 93	$ 186,244	$ (21,600)
Balance (in shares) at Mar. 31, 2020					9,347		1,137
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest				$ (1,077)