Acquisitions (Details) $ in Thousands		1 Months Ended								12 Months Ended
	Dec. 16, 2021 USD ($) distribution_center	Dec. 31, 2021 USD ($) store distribution_center	Jun. 30, 2021 distribution_center	Apr. 30, 2021 distribution_center	Dec. 31, 2020 USD ($) distribution_center	Oct. 31, 2020 distribution_center	Sep. 30, 2020 distribution_center	Feb. 29, 2020 distribution_center	Jan. 31, 2019 locations	Dec. 31, 2021 USD ($) store	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Business Acquisition [Line Items]
Number of sales centers | store		410								410
Payments to Acquire Businesses, Net of Cash Acquired | $										$ 811,956	$ 124,587	$ 8,901
Goodwill | $		$ 688,364			$ 268,167					$ 688,364	$ 268,167
Porpoise Pool & Patio, Inc.
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | $	$ 57,400
Payments to Acquire Businesses, Net of Cash Acquired | $	788,700
Goodwill | $	403,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $	301,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | $	$ 84,200
Virginia | W.W. Adcock, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations | locations									1
North Carolina | W.W. Adcock, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations | locations									1
PENNSYLVANIA | W.W. Adcock, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations | locations									2
TEXAS | Master Tile Network LLC [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations								2
TEXAS | Jet Line Products, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations						2
NEVADA | Master Tile Network LLC [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations								1
OKLAHOMA | Master Tile Network LLC [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations								1
ONTARIO | Northeastern Swimming Pool Distributors, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations							2
NEW JERSEY | Jet Line Products, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations						3
NEW YORK | Jet Line Products, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations						3
FLORIDA | Jet Line Products, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations						1
FLORIDA | TWC Distributors, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations					9
FLORIDA | Vak Pak Builders Supply, Inc.
Business Acquisition [Line Items]
Business Combination, Number of Locations			1
FLORIDA | Wingate Supply, Inc.
Business Acquisition [Line Items]
Business Combination, Number of Locations		1
FLORIDA | Porpoise Pool & Patio, Inc.
Business Acquisition [Line Items]
Business Combination, Number of Locations	1
GEORGIA | TWC Distributors, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Number of Locations					1
TENNESSEE | Pool Source, LLC
Business Acquisition [Line Items]
Business Combination, Number of Locations				1