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OTHER ASSETS, NET | 12 Months Ended
--- | ---
Dec. 31, 2012
OTHER ASSETS, NET |
OTHER ASSETS, NET | 7. OTHER ASSETS, NET Other assets, net of accumulated amortization, consisted of the following:
|  | December 31, |
--- | --- | --- | ---
(In thousands) |  | 2012 |  | 2011 |
Advances for long-term purchase contracts |  | $ | 19,406 |  | $ | 31,154 |
Investment in joint ventures |  |  | 6,051 |  |  | 6,419 |
Deferred financing costs, net |  |  | 16,308 |  |  | 18,740 |
Long-term assets held for sale |  |  | 13,829 |  |  | 14,750 |
Other |  |  | 7,992 |  |  | 8,308 |
Total other assets, net |  | $ | 63,586 |  | $ | 79,371 |
The decrease in advances for long-term purchase contracts is the result of amortizing the prepayments usage over the terms of the related contracts. Deferred financing costs amortized as interest expense during 2012, 2011 and 2010 were $3.6 million, $3.6 million and $4.3 million, respectively. Long-term assets held for sale include real estate properties in the U.S. In January 2012, we sold our on-site air separation unit at our Plaquemine, Louisiana facility for $18 million, resulting in a gain of $17.4 million that is included in the gain on sale of assets in the Consolidated Statements of Income for the year ended December 31, 2012. This air separation unit was included in assets held for sale, in the amount of $0.6 million as of December 31, 2011. Concurrent with the sale, we entered into a long-term supply agreement with the purchaser to supply the Plaquemine facility with the products made by the air separation unit at market prices.

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