Basis and Summary of Significant Accounting Policies Accounts Receivable Net of Allowances (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Accounts receivable, net of allowances	$ 105,602	$ 107,383
Customers
Financing Receivable, Impaired [Line Items]
Accounts receivable, net of allowances	27,469	30,438
Corporate
Financing Receivable, Impaired [Line Items]
Accounts receivable, net of allowances	34,909	32,572
Franchisee
Financing Receivable, Impaired [Line Items]
Accounts receivable, net of allowances	$ 43,224	$ 44,373