Acquisitions (Details)	Dec. 31, 2011	Dec. 31, 2010 Les Produits de Piscine Metrinox Inc. [Member]	Dec. 31, 2010 Turf Equipment Supply Company [Member]	Dec. 31, 2010 Pool Boat and Leisure, S.A. [Member]	Dec. 31, 2009 General Pool and Spa Supply, Inc. (GPS) [Member]	Dec. 31, 2011 Kilpatrick Company Inc [Member]	Dec. 31, 2011 Poolway Schwimmbadtechnik GmbH [Member]	Dec. 31, 2011 G.L. Cornell Company [Member]
Business Acquisition [Line Items]
Number of sales centers	298	2	3	1	10	4	1	1
Number of acquired sales centers consolidated into existing sales centers					3