Acquisitions (Details)	Dec. 31, 2016
Business Acquisition [Line Items]
Number of sales centers	344
Controlling Interest by parent	60.00%
Atlantic Chemical & Aquatics Inc. [Member]
Business Acquisition [Line Items]
Number of sales centers	2
DFW Stone Supply, LLC [Member]
Business Acquisition [Line Items]
Number of sales centers	2
Pool Systems Pty. Ltd. [Member]
Business Acquisition [Line Items]
Number of sales centers	3
Controlling Interest by parent	60.00%
St. Louis Hardscape Material & Supply, LLC [Member]
Business Acquisition [Line Items]
Number of sales centers	1
The Melton Corporation [Member]
Business Acquisition [Line Items]
Number of sales centers	2
Seaboard Industries Inc [Member]
Business Acquisition [Line Items]
Number of sales centers	3
PoolwerxDevelopmentLLC [Member]
Business Acquisition [Line Items]
Number of sales centers	1
Metro Irrigation Supply Company Ltd. [Member]
Business Acquisition [Line Items]
Number of sales centers	8