Other Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Equity method investment for JHJ International Transportation Co., Ltd.	$ 22.3	$ 53.6
Deferred debt costs	14.5	14.9
Other	21.5	28.9
Other assets	58.3	97.4
Equity investment impairment	30.8	0	12.3
JHJ international Transportation Co. [Member]
Dividends received	2.4	2.3
Ownership interest percentage	50.00%
Excess of investment over interest in equity	$ 4.6	$ 35.2

Net amount of long-term deferred finance costs capitalized at the end of the reporting period.

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