| Gross Carrying Amount and Accumulated Amortization of Definite-Lived Intangible Assets | 
The following table presents the changes in the gross carrying amount and accumulated amortization of definite-lived intangible assets for the nine months ended September 30, 2014:
 
|  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|   | Revenue- generating contracts |   | Client / vendor relationships |   | Non-compete agreements |   | Venue management and leaseholds |   | Technology |   | Trademarks and naming rights |   | Other |   | Total |  
|   | (in thousands) |  
| Balance as of December 31, 2013: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Gross carrying amount | $ | 585,094 | 
 |   | $ | 277,937 | 
 |   | $ | 137,199 | 
 |   | $ | 85,642 | 
 |   | $ | 100,664 | 
 |   | $ | 28,524 | 
 |   | $ | 2,375 | 
 |   | $ | 1,217,435 | 
 |  
| Accumulated amortization | (231,053 | ) |   | (81,809 | ) |   | (101,128 | ) |   | (43,687 | ) |   | (73,110 | ) |   | (9,092 | ) |   | (992 | ) |   | (540,871 | ) |  
| Net | 354,041 | 
 |   | 196,128 | 
 |   | 36,071 | 
 |   | 41,955 | 
 |   | 27,554 | 
 |   | 19,432 | 
 |   | 1,383 | 
 |   | 676,564 | 
 |  
| Gross carrying amount: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Acquisitions—     current year | 3,194 | 
 |   | 45,271 | 
 |   | — | 
 |   | — | 
 |   | 4,000 | 
 |   | — | 
 |   | 1,100 | 
 |   | 53,565 | 
 |  
| Acquisitions—  prior year | (1,851 | ) |   | 5,456 | 
 |   | 1,500 | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | 5,105 | 
 |  
| Dispositions | (1,600 | ) |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | (1,600 | ) |  
| Foreign exchange | (9,241 | ) |   | (3,237 | ) |   | — | 
 |   | (833 | ) |   | (1,220 | ) |   | (645 | ) |   | (3 | ) |   | (15,179 | ) |  
| 
Other (1)
 | (2,682 | ) |   | (800 | ) |   | (14,800 | ) |   | — | 
 |   | — | 
 |   | — | 
 |   | 570 | 
 |   | (17,712 | ) |  
| Net change | (12,180 | ) |   | 46,690 | 
 |   | (13,300 | ) |   | (833 | ) |   | 2,780 | 
 |   | (645 | ) |   | 1,667 | 
 |   | 24,179 | 
 |  
| Accumulated amortization: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Amortization  | (40,063 | ) |   | (32,718 | ) |   | (10,263 | ) |   | (5,128 | ) |   | (16,573 | ) |   | (2,508 | ) |   | (315 | ) |   | (107,568 | ) |  
| Dispositions | 605 | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | 605 | 
 |  
| Foreign exchange | 4,192 | 
 |   | 590 | 
 |   | — | 
 |   | 453 | 
 |   | 1,152 | 
 |   | 471 | 
 |   | 1 | 
 |   | 6,859 | 
 |  
| 
Other (1)
 | 2,682 | 
 |   | 800 | 
 |   | 15,550 | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | 19,032 | 
 |  
| Net change | (32,584 | ) |   | (31,328 | ) |   | 5,287 | 
 |   | (4,675 | ) |   | (15,421 | ) |   | (2,037 | ) |   | (314 | ) |   | (81,072 | ) |  
| Balance as of September 30, 2014: |   |   |   |   |   |   |   |   |   |   |   |   |  
| Gross carrying amount | 572,914 | 
 |   | 324,627 | 
 |   | 123,899 | 
 |   | 84,809 | 
 |   | 103,444 | 
 |   | 27,879 | 
 |   | 4,042 | 
 |   | 1,241,614 | 
 |  
| Accumulated amortization | (263,637 | ) |   | (113,137 | ) |   | (95,841 | ) |   | (48,362 | ) |   | (88,531 | ) |   | (11,129 | ) |   | (1,306 | ) |   | (621,943 | ) |  
| Net | $ | 309,277 | 
 |   | $ | 211,490 | 
 |   | $ | 28,058 | 
 |   | $ | 36,447 | 
 |   | $ | 14,913 | 
 |   | $ | 16,750 | 
 |   | $ | 2,736 | 
 |   | $ | 619,671 | 
 | _________ 
|  |  |  
| (1)  | 
Other includes net downs of fully amortized or impaired assets and $0.6 million of reclassifications of certain assets from indefinite-lived intangible assets.
 |  | 
      
        | Changes in Goodwill by Segment | 
The following table presents the changes in the carrying amount of goodwill in each of the Company’s reportable segments for the nine months ended September 30, 2014:
 
      
|  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|   | Concerts |   | Ticketing |   | Artist Nation |   | Sponsorship &  Advertising |   | Total |  
|   | (in thousands) |  
| Balance as of December 31, 2013: |   |   |   |   |   |   |   |   |   |  
| 
Goodwill (1)
 | $ | 505,472 | 
 |   | $ | 642,249 | 
 |   | $ | 278,923 | 
 |   | $ | 310,241 | 
 |   | $ | 1,736,885 | 
 |  
| 
Accumulated impairment losses (1)
 | (269,902 | ) |   | — | 
 |   | — | 
 |   | — | 
 |   | (269,902 | ) |  
|                  Net | 235,570 | 
 |   | 642,249 | 
 |   | 278,923 | 
 |   | 310,241 | 
 |   | 1,466,983 | 
 |  
|   |   |   |   |   |   |   |   |   |   |  
| Acquisitions—current year | 1,129 | 
 |   | 7,895 | 
 |   | 37,655 | 
 |   | — | 
 |   | 46,679 | 
 |  
| Acquisitions—prior year | 2,549 | 
 |   | — | 
 |   | (927 | ) |   | (624 | ) |   | 998 | 
 |  
| Dispositions | — | 
 |   | (4,434 | ) |   | — | 
 |   | — | 
 |   | (4,434 | ) |  
| Foreign exchange | (10,400 | ) |   | (5,813 | ) |   | (91 | ) |   | (9,245 | ) |   | (25,549 | ) |  
|   |   |   |   |   |   |   |   |   |   |  
| Balance as of September 30, 2014: |   |   |   |   |   |   |   |   |  
| Goodwill | 498,750 | 
 |   | 639,897 | 
 |   | 315,560 | 
 |   | 300,372 | 
 |   | 1,754,579 | 
 |  
| Accumulated impairment losses | (269,902 | ) |   | — | 
 |   | — | 
 |   | — | 
 |   | (269,902 | ) |  
|                  Net | $ | 228,848 | 
 |   | $ | 639,897 | 
 |   | $ | 315,560 | 
 |   | $ | 300,372 | 
 |   | $ | 1,484,677 | 
 | 
 _________ 
|  |  |  
| (1)  | 
The previously reported total balance has been reduced by $13.0 million due to the net down of fully impaired goodwill related to the Company’s non-core events business which was sold in 2008.
 |  
 |