Goodwill and Intangibles - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended
	Sep. 30, 2013 Segment	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Scenario, Previously Reported [Member] Segment	Dec. 31, 2013 Scenario, Forecast [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Number of operating segment	4				2
Amortization expenses	$ 3,785	$ 3,866	$ 11,534	$ 11,590
Estimated Amortization Expenses						$ 15,300