Segment Operating Results (Geographic Information) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Segment Reporting Information [Line Items]
Total	$ 154,284	[1]	$ 164,718	[1]	$ 433,005	[1]	$ 415,897	[1]
UNITED STATES [Member]
Segment Reporting Information [Line Items]
Net revenue	114,018	[1]	131,900	[1]	315,085	[1]	321,515	[1]
Europe And Other [Member]
Segment Reporting Information [Line Items]
Net revenue	30,860	[1]	22,364	[1]	90,491	[1]	69,313	[1]
Latin America [Member]
Segment Reporting Information [Line Items]
Net revenue	$ 9,406	[1]	$ 10,454	[1]	$ 27,429	[1]	$ 25,069	[1]

[1] Excludes Other Revenue and Interest Expense.