Acquisitions - Other Acquisitions (Details) (USD $)	3 Months Ended		9 Months Ended			12 Months Ended			3 Months Ended	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2012 Business Acquisition, Martinic [Member]	Dec. 31, 2012 Business Acquisition, Wulfrun [Member]	Mar. 31, 2013 Business Acquisition, Witter [Domain]	Sep. 30, 2013 Business Acquisition, AL-KO [Domain]	Jun. 30, 2013 Business Acquisition, AL-KO [Domain]
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid					$ 56,000,000
Net sales	355,620,000	335,870,000	1,071,430,000	971,870,000		13,000,000	10,000,000	20,000,000		16,000,000
Bargain purchase gain			$ (2,880,000)	$ 0					$ 2,900,000