Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 261,575	$ 234,461	$ 191,339
Other comprehensive income (loss), net of tax [Abstract]
Foreign currency translation adjustments	2,295	(4,945)	5,545
Change in unrealized gains and losses on interest rate swaps, net of tax	(1,657)	1,276	1,205
Total other comprehensive income (loss)	638	(3,669)	6,750
Comprehensive income	262,213	230,792	198,089
Comprehensive loss attributable to noncontrolling interest	0	0	74
Comprehensive income attributable to Pool Corporation	262,213	230,792	198,163
Tax effect of change in unrealized gains and losses on interest rate swaps	$ 552	$ (425)	$ (769)