Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net sales	$ 546,441	$ 515,250
Cost of sales	392,820	372,227
Gross profit	153,621	143,023
Selling and administrative expenses	122,623	113,493
Operating income	30,998	29,530
Interest and other non-operating expenses, net	3,647	2,964
Income before income taxes and equity earnings	27,351	26,566
Provision for income taxes	5,119	10,228
Equity earnings in unconsolidated investments, net	38	25
Net income	22,270	16,363
Net loss attributable to redeemable noncontrolling interest	11	8
Net income attributable to Pool Corporation	$ 22,281	$ 16,371
Earnings per share:
Basic (in dollars per share)	$ 0.54	$ 0.39
Diluted (in dollars per share)	$ 0.52	$ 0.38
Weighted average shares outstanding: [Abstract]
Basic (in shares)	41,192	42,226
Diluted (in shares)	42,877	43,317
Cash dividends declared per common share	$ 0.31	$ 0.26