Accounts Receivable Grants from Outside Parties (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
GRANTS FROM OUTSIDE PARTIES: [Abstract]
Grant proceeds received from outside parties			$ 30,000	$ 31,500
Amortization of deferred grants	$ 4,652	$ 2,501	$ 10,513	$ 8,025