Joint Venture (Details) (Municipal City of Suqian [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
	Dec. 28, 2013	Feb. 28, 2014	Mar. 31, 2014 Scenario, Forecast [Member]
Schedule of Equity Method Investments [Line Items]
Joint venture, total investment	$ 500
Joint venture, agreement term	6 years
Joint venture, cash contribution		4.8	32.5
Joint Venture, ownership percentage of parent		75.00%	80.00%
Joint venture, cash contribution, minority interest	$ 1.6
Joint venture, ownership percentage of minority interest		25.00%
Joint venture, right to purchase assets, term	5 years
Joint venture, future buy-out cost ratio to initial cash investment	1.5