Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net sales	$ 3,199,517	$ 2,998,097	$ 2,788,188
Cost of sales	2,274,592	2,127,924	1,982,899
Gross profit	924,925	870,173	805,289
Selling and administrative expenses	583,679	556,284	520,918
Operating income	341,246	313,889	284,371
Interest and other non-operating expenses, net	23,772	20,896	15,189
Income before income taxes and equity earnings	317,474	292,993	269,182
Provision for income taxes	56,161	58,774	77,982
Equity earnings in unconsolidated investments, net	262	242	139
Net income	261,575	234,461	191,339
Net loss attributable to noncontrolling interest	0	0	294
Net income attributable to Pool Corporation	$ 261,575	$ 234,461	$ 191,633
Earnings per share:
Basic (in dollars per share)	$ 6.57	$ 5.82	$ 4.69
Diluted (in dollars per share)	$ 6.40	$ 5.62	$ 4.51
Weighted average shares outstanding:
Basic (in shares)	39,833	40,311	40,838
Diluted (in shares)	40,865	41,693	42,449
Cash dividends declared per common share (in dollars per share)	$ 2.10	$ 1.72	$ 1.42