CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED STATEMENTS OF INCOME
Net sales	$ 8,613.4	$ 9,350.5	$ 10,451.6
Costs and expenses:
Cost of sales (exclusive of depreciation and amortization shown below)	6,023.1	6,803.6	7,830.6
Warehouse, delivery, selling, general and administrative	1,803.3	1,728.5	1,789.8
Depreciation and amortization	222.0	218.5	213.8
Impairment of long-lived assets	52.4	53.3
Total costs and expenses	8,100.8	8,803.9	9,834.2
Operating income	512.6	546.6	617.4
Other income (expense):
Interest	(84.6)	(84.3)	(81.9)
Other income (expense), net	1.2	(3.6)	10.8
Income before income taxes	429.2	458.7	546.3
Income tax provision	120.1	142.5	170.0
Net income	309.1	316.2	376.3
Less: Net income attributable to noncontrolling interests	4.8	4.7	4.8
Net income attributable to Reliance	$ 304.3	$ 311.5	$ 371.5
Earnings per share attributable to Reliance stockholders:
Diluted earnings per common share (in dollars per share)	$ 4.16	$ 4.16	$ 4.73
Basic earnings per common share (in dollars per share)	4.21	4.20	4.78
Cash dividends per share (in dollars per share)	$ 1.65	$ 1.60	$ 1.40