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Goodwill and Other Intangible Assets, Net (Tables) | 3 Months Ended
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Mar. 31, 2013
Goodwill and Other Intangible Assets, Net [Abstract] |
Components of goodwill and other intangible assets, net | The components of goodwill and other intangible assets, net at March 31, 2013 and December 31, 2012 were as follows (in thousands):
|  | March 31, 2013 |  |  | December 31, 2012 |
Goodwill |  | $ | 440,926 |  |  | $ | 440,709 |
Intangible assets: |  |  |  |  |  |  |  |
Client lists |  |  | 166,516 |  |  |  | 168,699 |
Other intangible assets |  |  | 8,478 |  |  |  | 9,644 |
Total intangible assets |  |  | 174,994 |  |  |  | 178,343 |
Total goodwill and intangibles assets |  |  | 615,920 |  |  |  | 619,052 |
Accumulated amortization: |  |  |  |  |  |  |  |
Client lists |  |  | (63,957 | ) |  |  | (62,115 | )
Other intangible assets |  |  | (4,863 | ) |  |  | (5,718 | )
Total accumulated amortization |  |  | (68,820 | ) |  |  | (67,833 | )
Goodwill and other intangible assets, net |  | $ | 547,100 |  |  | $ | 551,219 |

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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