Subsequent Event (Details) (USD $) In Millions, except Per Share data, unless otherwise specified			0 Months Ended			0 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Oct. 21, 2014 Merger Agreement Subsequent Event	Oct. 21, 2014 Merger Agreement BTU International, Inc (BTU) Subsequent Event	Oct. 21, 2014 Merger Agreement BTU International, Inc (BTU) Subsequent Event	Oct. 21, 2014 Merger Agreement The Company Subsequent Event	Oct. 21, 2014 Merger Agreement The Company Subsequent Event
Subsequent Event [Line Items]
Common stock, par value (in usd per share)	$ 0.01	$ 0.01			$ 0.01		$ 0.01
Exchange ratio						0.3291
Early merger termination, fee				$ 1.3		$ 1.3
Early merger termination, expense reimbursement				$ 1.0		$ 1.0
Merger cancellation period following registration statement date			120 days