Accounts Receivable Net of Allowances (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, net of allowances	$ 69,522	$ 87,471
Customers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, net of allowances	5,838	5,384
Corporate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, net of allowances	24,708	29,650
Franchisee
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, net of allowances	$ 38,976	$ 52,437