Accounts Receivable Grants from Outside Parties (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
GRANTS FROM OUTSIDE PARTIES: [Abstract]
Grant proceeds from outside parties	$ 12,800,000	$ 2,848,000
Amortization of deferred grants	$ 2,600,000	$ 2,200,000