Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net sales	$ 988,163	$ 918,889	$ 1,534,603	$ 1,434,139
Cost of sales	698,499	648,153	1,091,318	1,020,380
Gross profit	289,664	270,736	443,285	413,759
Selling and administrative expenses	135,478	128,316	258,101	241,809
Operating income	154,186	142,420	185,184	171,950
Interest and other non-operating expenses, net	3,952	4,001	7,599	6,965
Income before income taxes and equity earnings	150,234	138,419	177,585	164,985
Provision for income taxes	55,654	53,209	60,772	63,437
Equity earnings in unconsolidated investments, net	40	37	78	62
Net income	94,620	85,247	116,891	101,610
Net loss attributable to redeemable noncontrolling interest	283	188	294	196
Net income attributable to Pool Corporation	$ 94,903	$ 85,435	$ 117,185	$ 101,806
Earnings per share:
Basic (in dollars per share)	$ 2.30	$ 2.03	$ 2.84	$ 2.42
Diluted (in dollars per share)	$ 2.21	$ 1.98	$ 2.73	$ 2.35
Weighted average shares outstanding: [Abstract]
Basic (in shares)	41,349	42,030	41,271	42,128
Diluted (in shares)	42,985	43,152	42,937	43,230
Cash dividends declared per common share	$ 0.37	$ 0.31	$ 0.68	$ 0.57