CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 171.1	$ 113.4
Other comprehensive (loss) income
Foreign currency translation (loss) gain	(2.9)	7.6
Pension and postretirement benefit adjustments, net of tax		2.3
Total other comprehensive (loss) income	(2.9)	9.9
Comprehensive income	168.2	123.3
Less: Comprehensive income attributable to noncontrolling interests	2.1	1.7
Comprehensive income attributable to Reliance	$ 166.1	$ 121.6