Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (5,153)	$ (13,500)	$ 3,203	$ 1,092
Other comprehensive income (loss), net of tax:
Foreign currency translation gain (loss) (net of tax expense (benefit) of ($8) and $28 for the three and nine months ended March 31, 2018, respectively, and ($5) and $100 for the three and nine months ended March 31, 2017, respectively)	(710)	1,035	826	(962)
Comprehensive income (loss)	(5,863)	(12,465)	4,029	130
Less: Comprehensive income attributable to noncontrolling interest	0	321	0	321
Comprehensive income (loss) attributable to Matrix Service Company	$ (5,863)	$ (12,786)	$ 4,029	$ (191)