Acquisition - Summary of Acquired Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified						3 Months Ended
	Mar. 31, 2014	Feb. 28, 2014	Mar. 31, 2014 Tradename - Indefinite Life [Member]	Mar. 31, 2014 Other [Member]	Mar. 31, 2014 Customer Relationships [Member]	Mar. 31, 2014 Internally Developed Software [Member]	Mar. 31, 2014 Tradenames - Finite Life [Member]	Mar. 31, 2014 Non-Competition Agreements [Member]	Mar. 31, 2014 Minimum [Member] Customer Relationships [Member]	Mar. 31, 2014 Maximum [Member] Customer Relationships [Member]
Acquired Intangible Assets [Line Items]
Costs	$ 13,255	$ 13,255	$ 1,820	$ 300	$ 5,455	$ 5,000	$ 300	$ 380
Useful Lives						3 years	3 years	3 years	10 years	15 years