Deferred Revenue (Details) (Conversion Services Agreement, USD $) In Thousands, unless otherwise specified	1 Months Ended	6 Months Ended
	Nov. 30, 2006	Mar. 31, 2013 lb
Deferred revenue
Up-front fees received	$ 50,000
Term of agreement to provide conversion services	20 years
Additional volume of titanium metal to be converted on exercise of option by service receiver (in pounds)		10,000,000
Revenue recognition period		20 years
Maximum
Deferred revenue
Annual volume of titanium metal to be converted (in pounds)	10,000,000
Amount of loan offered by counterparty		12,000