Acquisitions (Details)	Sep. 30, 2016
Metro Irrigation Supply Company Ltd [Member]
Business Acquisition [Line Items]
Number of sales centers	8
Seaboard Industries Inc [Member]
Business Acquisition [Line Items]
Number of sales centers	3
The Melton Corporation [Member]
Business Acquisition [Line Items]
Number of sales centers	2
Poolwerx Development LLC [Member]
Business Acquisition [Line Items]
Number of sales centers	1
St. Louis Hardscape Material & Supply, LLC [Member]
Business Acquisition [Line Items]
Number of sales centers	1