|
Components of Other Intangibles (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|---|
| Finite-Lived Intangible Assets | |||
| Gross carrying amount | $ 193,328 | $ 136,502 | $ 129,198 |
| Accumulated amortization | (38,899) | (29,787) | (20,288) |
| Net | 154,429 | 106,715 | 108,910 |
|
Trade names and trademarks
|
|||
| Finite-Lived Intangible Assets | |||
| Gross carrying amount | 144,254 | 118,422 | 115,954 |
| Accumulated amortization | (26,167) | (21,599) | (16,305) |
| Net | 118,087 | 96,823 | 99,649 |
|
Customer relationships
|
|||
| Finite-Lived Intangible Assets | |||
| Gross carrying amount | 45,252 | 14,426 | 10,050 |
| Accumulated amortization | (10,616) | (6,642) | (3,065) |
| Net | 34,636 | 7,784 | 6,985 |
|
Covenants not to compete
|
|||
| Finite-Lived Intangible Assets | |||
| Gross carrying amount | 3,822 | 3,654 | 3,194 |
| Accumulated amortization | (2,116) | (1,546) | (918) |
| Net | $ 1,706 | $ 2,108 | $ 2,276 |