Goodwill and Intangible Assets - Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Minimum [Member]
Dec. 31, 2013
Maximum [Member]
Dec. 31, 2013
Trademark [Member]
Dec. 31, 2012
Trademark [Member]
Dec. 31, 2013
Trademark [Member]
Minimum [Member]
Dec. 31, 2013
Trademark [Member]
Maximum [Member]
Dec. 31, 2013
Customer Base [Member]
Dec. 31, 2012
Customer Base [Member]
Dec. 31, 2013
Customer Base [Member]
Minimum [Member]
Dec. 31, 2013
Customer Base [Member]
Maximum [Member]
Dec. 31, 2013
Domain Names [Member]
Dec. 31, 2012
Domain Names [Member]
Dec. 31, 2013
Domain Names [Member]
Maximum [Member]
Dec. 31, 2013
Software [Member]
Dec. 31, 2012
Software [Member]
Dec. 31, 2013
Software [Member]
Maximum [Member]
Dec. 31, 2013
Technology [Member]
Dec. 31, 2012
Technology [Member]
Dec. 31, 2013
Technology [Member]
Minimum [Member]
Dec. 31, 2013
Technology [Member]
Maximum [Member]
Dec. 31, 2013
Technology and Know-how [Member]
Dec. 31, 2012
Technology and Know-how [Member]
Dec. 31, 2013
Technology and Know-how [Member]
Minimum [Member]
Dec. 31, 2013
Technology and Know-how [Member]
Maximum [Member]
Dec. 31, 2013
Non-compete Agreements [Member]
Dec. 31, 2012
Non-compete Agreements [Member]
Dec. 31, 2013
Non-compete Agreements [Member]
Maximum [Member]
Dec. 31, 2013
Internally Developed Software [Member]
Dec. 31, 2012
Internally Developed Software [Member]
Dec. 31, 2013
Internally Developed Software [Member]
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]                                                                
Intangible assets, estimated useful life     1 year 7 years     1 year 5 years     5 years 7 years     5 years     4 years     3 years 6 years     3 years 6 years     5 years     3 years
Gross Carrying Amount $ 25,434 $ 12,452     $ 666 $ 666     $ 3,789 $ 3,789     $ 894 $ 534   $ 299 $ 299   $ 13,963 $ 2,463     $ 3,176 $ 3,257     $ 162 $ 162   $ 2,485 $ 1,282  
Accumulated Amortization 8,548 6,084     666 666     1,901 1,447     341 137   299 299   1,835 1,581     2,597 1,577     34 9   875 368  
Net Carrying Amount $ 16,886 $ 6,368               $ 1,888 $ 2,342     $ 553 $ 397           $ 12,128 $ 882     $ 579 $ 1,680     $ 128 $ 153   $ 1,610 $ 914