Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ (3,949)	$ 1,372
Other comprehensive income (loss):
Currency translation adjustments		(557)	(16,096)
Pension activity, net of tax	[1]	(122)	21
Deferred gain (loss) on hedging activity, net of tax	[2]	(3,573)	409
Total comprehensive loss		(8,201)	(14,294)
Comprehensive (income) loss attributable to non-controlling interests		(85)	994
Comprehensive loss attributable to Aegion Corporation		$ (8,286)	$ (13,300)

[1] Amounts presented net of tax of $(30) and $5 for the quarters ended March 31, 2016 and 2015, respectively.

[2] Amounts presented net of tax of $(2,392) and $271 for the quarters ended March 31, 2016 and 2015, respectively.