Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income	$ 234,461	$ 191,339	$ 148,603
Other comprehensive income (loss), net of tax [Abstract]
Foreign currency translation adjustments	(4,945)	5,545	(1,661)
Change in unrealized gains and losses on interest rate swaps, net of tax	1,276	1,205	1,312
Total other comprehensive income (loss)	(3,669)	6,750	(349)
Comprehensive income	230,792	198,089	148,254
Comprehensive loss attributable to noncontrolling interest	0	74	378
Comprehensive income attributable to Pool Corporation	$ 230,792	$ 198,163	$ 148,632