Discontinued Operations - Additional Information (Details) - USD ($) $ in Millions			3 Months Ended		12 Months Ended
	Feb. 17, 2015	Jun. 20, 2014	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
WEK [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses		$ 20.7
Adjustment to working capital		0.8
Proceeds from divestiture of businesses, held in escrow		$ 1.0
Net gain on sale of discontinued operations, net of tax							$ 3.0
Tax (expense) benefit from provision for (gain) Loss on disposal							$ 1.6
Lawn and Garden Business [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses	$ 90.0
Adjustment to working capital					$ 4.0
Interest rate	6.00%
Notes Receivable, Fair Value Disclosure	$ 17.8
Amount of consideration received	110.0
Gain sale of business			$ 0.9	$ 3.8		$ 4.7
Promissory note receivable	$ 20.0
Maturity date of promissory note receivable	2020-08
Escrow deposit	$ 8.6
Escrow deposit due to be settled date	2016-08