Accounts Receivable Net of Allowances (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Accounts receivable, net of allowances	$ 107,383	$ 68,684
Customer
Financing Receivable, Impaired [Line Items]
Accounts receivable, net of allowances	30,438	8,275
Corporate
Financing Receivable, Impaired [Line Items]
Accounts receivable, net of allowances	32,572	16,730
Franchise
Financing Receivable, Impaired [Line Items]
Accounts receivable, net of allowances	$ 44,373	$ 43,679