Major Classes of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Building and improvements	$ 91,575	$ 82,056
Furniture and equipment	44,828	42,353
Property, Plant and Equipment, Gross, Total	136,403	124,409
Less: accumulated depreciation	(51,396)	(44,669)
Property and equipment - net	$ 85,007	$ 79,740