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Deferred Revenue and Advances From Customers
3 Months Ended
Mar. 31, 2013
Deferred Revenue and Advances from Customers  
Deferred Revenue and Advances From Customers
7. DEFERRED REVENUE AND ADVANCES FROM CUSTOMERS

March 31,
2013
December 31,
2012
(millions)
Deferred revenue
$ 112.1 $ 123.1
Advances from customers
44.7 2.4
$ 156.8 $ 125.5
Deferred costs associated with deferred revenue
$ 106.2 $ 116.8

Advances from customers as of March 31, 2013 include $44.4 million of funding provided by DOE in March 2013 for the RD&D program. Details are provided in Note 4.