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Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 Hub [Member] | Dec. 31, 2012 Hub [Member] | Dec. 31, 2013 Mode [Member] | Dec. 31, 2012 Mode [Member] | Dec. 31, 2011 Mode [Member]
Goodwill [Line Items] |  |  |  |  |  |  |
Goodwill, Beginning Balance | $ 263,251 | $ 263,470 | $ 233,862 | $ 234,081 | $ 29,389 | $ 29,389 | $ 29,389
Other | (219) | (219) | (219) | (219) |  |  |
Goodwill, Ending Balance | $ 263,032 | $ 263,251 | $ 233,643 | $ 233,862 | $ 29,389 | $ 29,389 | $ 29,389

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Details
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- Definition Amount of other (increase) decrease of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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