Goodwill and Intangible Assets - Schedule of Changes in Goodwill and Intangible Assets with Indefinite Lives (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]
Balance at beginning of period	$ 31,785
Goodwill from Xtrakter acquisition	26,085
Intangible assets with indefinite lives from Xtrakter acquisition	2,120
Less: Goodwill ascribed to discontinued operations	(277)
Balance at end of period	$ 59,713