Consolidated Statements of Operations - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Revenues	[1]	$ 1,213,935	$ 1,333,568		$ 1,359,019
Cost of revenues		967,700	1,066,642		1,074,207
Gross profit	[1]	246,235	266,926		284,812
Operating expenses		199,430	219,823		226,173
Goodwill impairment		0	1,389	[2]	45,390
Definite-lived intangible asset impairment		0	2,169		41,032
Impairment of assets held for sale		23,427	0		0
Acquisition and divestiture expenses		3,375	7,004		2,923
Restructuring and related charges		9,030	6,894		12,814
Operating income (loss)	[1]	10,973	29,647		(43,520)
Other income (expense):
Interest expense		(14,002)	(17,327)		(16,001)
Interest income		1,038	516		145
Other	[3]	(10,893)	(9,881)		(2,201)
Total other expense		(23,857)	(26,692)		(18,057)
Income (loss) before taxes on income		(12,884)	2,955		(61,577)
Taxes (benefit) on income (loss)		6,564	(132)		5,005
Net income (loss)		(19,448)	3,087		(66,582)
Non-controlling interests income		(1,444)	(159)		(2,819)
Net income (loss) attributable to Aegion Corporation		$ (20,892)	$ 2,928		$ (69,401)
Earnings (loss) per share attributable to Aegion Corporation:
Basic (in dollars per share)		$ (0.67)	$ 0.09		$ (2.09)
Diluted (in dollars per share)		$ (0.67)	$ 0.09		$ (2.09)

[1] Attributed to the country of origin.

[2] During 2018, the Company recorded goodwill of $2.7 million and $1.3 million related to the acquisitions of Hebna and P2S, respectively (see Note 1).

[3] Other expense for 2019 includes $10.2 million of restructuring charges (see Note 4). Other expense for 2018 includes charges of $7.0 million related to the loss on the sale of Bayou (see Note 1) and $4.0 million of restructuring charges (see Note 4).