Disposal of Businesses - Additional Information (Details) - USD ($)			3 Months Ended		12 Months Ended
	Dec. 18, 2017	Feb. 17, 2015	Sep. 30, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 06, 2020	Jun. 30, 2018
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Provision for loss on note receivable					$ 0	$ 23,008,000	$ 0
Interest income on notes receivable					$ 808,000	1,221,000	1,361,000
Maximum [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Interest rate					5.45%
Minimum [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Interest rate					4.67%
Brazil Business [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Consideration received for discontinued operation	$ 1
Additional amounts due, or to be settled	0
Gain (Loss) on sale of Business				$ 35,000,000
Cash held by discontinued business				1,200,000			1,200,000
Cost incurred to sell business				$ 300,000
U.S. tax benefit as a result of a worthless stock deduction	$ 15,000,000					700,000
Brazil Business [Member] | Maximum [Member] | Factoring Arrangement [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Guarantee obligation amount until December 31, 2019					$ 7,000,000
Brazil Business [Member] | Level 3 [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Liability related to guaranty					$ 0
Lawn and Garden Business [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Promissory note receivable		$ 20,000,000
Maturity date of promissory note receivable		2020-08			2022-08
Interest rate		6.00%
Provision for loss on note receivable			$ 23,000,000
Escrow deposit		$ 8,600,000
Escrow deposit released									$ 7,400,000
Discontinued operations pre-tax charge						1,200,000
Lawn and Garden Business [Member] | Notes Receivable [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Interest income on notes receivable						$ 1,000,000	$ 1,300,000
Lawn and Garden Business [Member] | Guarantee Obligation [Member] | Subsequent Event [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of fully reserved promissory notes and related accrued interest receivable								$ 1,200,000