Accounts Receivable Grants from Outside Parties (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
GRANTS FROM OUTSIDE PARTIES: [Abstract]
Grant proceeds from outside parties	$ 33,913,000	$ 39,632,000	$ 22,642,000
Amortization of deferred grants included as offset to depreciation expense	$ 9,300,000	$ 8,000,000	$ 7,900,000