Goodwill and Intangible Assets - Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified																					6 Months Ended	12 Months Ended			6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Trade Names [Member]	Dec. 31, 2013 Trade Names [Member]	Jun. 30, 2014 Customer Base [Member]	Dec. 31, 2013 Customer Base [Member]	Jun. 30, 2014 Customer Backlog [Member]	Jun. 30, 2014 Domain Names [Member]	Dec. 31, 2013 Domain Names [Member]	Jun. 30, 2014 Software [Member]	Dec. 31, 2013 Software [Member]	Jun. 30, 2014 Technology [Member]	Dec. 31, 2013 Technology [Member]	Jun. 30, 2014 Technology and Know-how [Member]	Dec. 31, 2013 Technology and Know-how [Member]	Jun. 30, 2014 Documented Know-how [Member]	Jun. 30, 2014 Non-compete Agreements [Member]	Dec. 31, 2013 Non-compete Agreements [Member]	Jun. 30, 2014 Internally Developed Software [Member]	Dec. 31, 2013 Internally Developed Software [Member]	Jun. 30, 2014 Minimum [Member]	Dec. 31, 2013 Minimum [Member] Trade Names [Member]	Dec. 31, 2013 Minimum [Member] Customer Base [Member]	Dec. 31, 2013 Minimum [Member] Technology [Member]	Jun. 30, 2014 Maximum [Member]	Dec. 31, 2013 Maximum [Member] Trade Names [Member]	Dec. 31, 2013 Maximum [Member] Customer Base [Member]	Dec. 31, 2013 Maximum [Member] Customer Backlog [Member]	Dec. 31, 2013 Maximum [Member] Domain Names [Member]	Dec. 31, 2013 Maximum [Member] Software [Member]	Dec. 31, 2013 Maximum [Member] Technology [Member]	Dec. 31, 2013 Maximum [Member] Technology and Know-how [Member]	Dec. 31, 2013 Maximum [Member] Documented Know-how [Member]	Dec. 31, 2013 Maximum [Member] Non-compete Agreements [Member]	Dec. 31, 2013 Maximum [Member] Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life																					4 months	1 year	5 years	3 years	7 years	5 years	7 years	4 months	5 years	4 years	6 years	3 years	4 years	5 years	3 years
Gross Carrying Amount	$ 28,503	$ 25,434	$ 676	$ 666	$ 5,129	$ 3,789	$ 120	$ 908	$ 894	$ 299	$ 299	$ 14,363	$ 13,963	$ 3,176	$ 3,176	$ 280	$ 162	$ 162	$ 3,390	$ 2,485
Accumulated Amortization	11,027	8,548	670	666	2,199	1,901	120	425	341	299	299	2,856	1,835	3,125	2,597	22	53	34	1,258	875
Net Carrying Amount	$ 17,476	$ 16,886	$ 6		$ 2,930	$ 1,888		$ 483	$ 553			$ 11,507	$ 12,128	$ 51	$ 579	$ 258	$ 109	$ 128	$ 2,132	$ 1,610