CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED STATEMENTS OF INCOME
Net sales	$ 2,757.1	$ 2,419.3
Costs and expenses:
Cost of sales (exclusive of depreciation and amortization shown below)	1,937.2	1,697.7
Warehouse, delivery, selling, general and administrative	519.4	476.2
Depreciation and amortization	54.1	55.2
Total costs and expenses	2,510.7	2,229.1
Operating income	246.4	190.2
Other expense:
Interest expense	19.3	17.3
Other expense, net	1.9	4.4
Income before income taxes	225.2	168.5
Income tax provision	54.1	55.1
Net income	171.1	113.4
Less: Net income attributable to noncontrolling interests	2.1	1.7
Net income attributable to Reliance	$ 169.0	$ 111.7
Earnings per share attributable to Reliance stockholders:
Diluted earnings per common share (in dollars per share)	$ 2.30	$ 1.52
Basic earnings per common share (in dollars per share)	2.32	1.53
Cash dividends per share (in dollars per share)	$ 0.50	$ 0.45