Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
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
Weighted average shares outstanding: [Abstract]
Basic (in shares)	41,192	42,226
Effect of dilutive securities: [Abstract]
Stock options and employee stock purchase plan (in shares)	1,685	1,091
Diluted (in shares)	42,877	43,317
Basic (in dollars per share)	$ 0.54	$ 0.39
Diluted (in dollars per share)	$ 0.52	$ 0.38
Anti-dilutive stock options excluded from diluted earnings per share computations (in shares)	108	153