Segment Information - Summary of Segment long-lived and Total Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Asset Reconciling Item [Line Items]
Total long-lived assets	$ 242,743	$ 164,339
Total assets	352,823	251,416
Real Estate Franchise Services
Segment Reporting Asset Reconciling Item [Line Items]
Total long-lived assets	238,147	159,646
Total assets	344,723	243,942
Brokerage And Other
Segment Reporting Asset Reconciling Item [Line Items]
Total long-lived assets	4,596	4,693
Total assets	$ 8,100	$ 7,474