Other Transactions (Details) (USD $)	0 Months Ended	12 Months Ended						0 Months Ended		12 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Feb. 14, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Hyster-Yale	Sep. 28, 2012 Common Class A Hyster-Yale	Sep. 28, 2012 Common Class B Hyster-Yale	Aug. 31, 2012 Reed Minerals acquisition	Dec. 31, 2013 Other Noncurrent Assets	Dec. 31, 2013 NACoal	Dec. 31, 2012 NACoal dragline	Sep. 30, 2012 NACoal Dragline	Dec. 31, 2012 NACoal Dragline	Jun. 30, 2012 NACoal Land	Dec. 31, 2012 NACoal Land	Dec. 31, 2013 Coyote Creek	Dec. 31, 2012 Coyote Creek
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash in escrow from investment		$ 5,000,000	$ 0	$ 0						$ 5,000,000
Escrow assets									5,000,000
Number of related companies acquired								4
Number of draglines sold											2
Proceeds from the sale of assets		2,504,000	35,974,000	3,353,000									31,200,000
Number of Draglines Sold for a Gain											1
Gain on sale of property												3,300,000	3,300,000	2,300,000	3,500,000
Accounts receivable from affiliates		32,636,000	28,144,000													27,900,000	24,800,000
Litigation settlement, gross	60,000,000
Litigation settlement, expense				2,800,000
Distributed shares						1	1
Other recognized expenses of spin-off					3,400,000
Other recognized expenses of spin-off, net of tax					$ 3,000,000