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Intangible and Other Assets | 12 Months Ended
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Dec. 31, 2012
Intangible and Other Assets |
Intangible and Other Assets | 6. Intangible and Other Assets Intangible and other assets consisted of the following (in thousands):
|  | December 31, |
|  | 2012 |  | 2011 |
Deferred debt issuance costs, net |  | $ | 18,348 |  | $ | 24,581 |
Intangible assets, net |  | 84,993 |  | 134,967 |
Deferred taxes |  | 31,102 |  | 21,779 |
Other |  | 40,405 |  | 41,524 |
Intangibles and other assets, net |  | $ | 174,848 |  | $ | 222,851 |
Intangible assets and deferred debt issuance costs consisted of the following (in thousands):
|  | December 31, 2012 |  | December 31, 2011 |
|  | Gross Carrying Amount |  | Accumulated Amortization |  | Gross Carrying Amount |  | Accumulated Amortization |
Deferred debt issuance costs |  | $ | 44,112 |  | $ | (25,764 | ) | $ | 44,141 |  | $ | (19,560 | )
Marketing related (5-20 year life) |  | 3,060 |  | (1,675 | ) | 3,043 |  | (1,400 | )
Customer- related (10-20 year life) |  | 164,562 |  | (86,605 | ) | 169,282 |  | (73,566 | )
Technology based (20 year life) |  | 4,375 |  | (3,561 | ) | 32,275 |  | (6,747 | )
Contract based (2-11 year life) |  | 55,776 |  | (50,939 | ) | 64,465 |  | (52,385 | )
Intangible assets and deferred debt issuance costs |  | $ | 271,885 |  | $ | (168,544 | ) | $ | 313,206 |  | $ | (153,658 | )
Amortization of deferred financing costs totaled $7.2 million, $8.9 million and $5.3 million in 2012, 2011 and 2010, respectively, and is recorded to interest expense in our consolidated statements of operations. Amortization of intangible assets totaled $20.8 million, $24.0 million and $27.5 million in 2012, 2011 and 2010, respectively. During 2012, we recorded an impairment of intangible assets of $29.1 million related to our contract water treatment business (see Note 13). Estimated future intangible amortization expense is as follows (in thousands):
2013 |  | $ | 14,914 |
2014 |  | 12,381 |
2015 |  | 10,483 |
2016 |  | 8,987 |
2017 |  | 7,321 |
Thereafter |  | 30,907 |
|  | $ | 84,993 |

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- Definition The entire disclosure for intangible assets and other assets. + References No definition available. + Details
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