Long-Term Debt - Additional Information (Detail)						3 Months Ended				3 Months Ended	12 Months Ended	0 Months Ended	3 Months Ended		3 Months Ended	12 Months Ended
	Mar. 31, 2014 USD ($)		Mar. 31, 2014 EUR (€)	Dec. 31, 2013 USD ($)	Dec. 31, 2013 EUR (€)	Mar. 31, 2014 Revolving Credit Facility [Member] USD ($)	Jan. 15, 2015 Revolving Credit Facility [Member] USD ($)	Dec. 31, 2013 Revolving Credit Facility [Member] USD ($)	Aug. 30, 2010 Revolving Credit Facility [Member] USD ($)	Mar. 31, 2014 Revolving Credit Facility [Member] LIBOR [Member]	Dec. 31, 2013 Revolving Credit Facility [Member] LIBOR [Member]	Aug. 30, 2010 Term Loan Facility [Member] USD ($)	Mar. 31, 2014 Term Loan Facility [Member] USD ($)	Dec. 31, 2013 Term Loan Facility [Member] USD ($)	Mar. 31, 2014 Term Loan Facility [Member] Base rate [Member] Maximum [Member]	Dec. 31, 2013 New Credit Agreement [Member] LIBOR [Member] Maximum [Member]	Dec. 31, 2013 New Credit Agreement [Member] Base rate [Member] Maximum [Member]	Mar. 31, 2014 Prior Credit Agreement [Member] LIBOR [Member]	Dec. 31, 2013 Prior Credit Agreement [Member] LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument term (in years)						5 years							5 years
Maximum borrowing capacity	$ 8,000,000		€ 5,800,000	$ 8,000,000	€ 5,800,000				$ 200,000,000
Maximum borrowing capacity												100,000,000
Maximum additional borrowing capacity available							100,000,000
Amount outstanding	0			0		20,000,000		20,000,000
Margin on variable rate										2.50%	2.50%					3.25%	2.25%
Variable rate basis															LIBOR
Effective interest rate (as a Percent)																		2.70%	2.70%
Revolving credit facility due date						Aug. 30, 2015
Amount of restricted net assets	171,100,000			168,500,000
Restricted cash	19,270,000	[1]		23,761,000
Debt issuance costs incurred													5,000,000
Deferred debt issuance costs, net													$ 900,000	$ 1,100,000

[1] Unaudited