Summary of Changes in Valuation and Qualifying Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012		Jan. 01, 2012
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance of Beginning of Period	$ 11,555		$ 10,771		$ 7,959
Charges to Earnings	11,176		6,706		3,479
Charges to Other Accounts	440	[1]	3,410	[1]	585	[1]
Deductions	(9,411)		(9,332)		(1,252)
Balance at End of Period	13,760		11,555		10,771
Other Reserves
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance of Beginning of Period							11,114
Balance at End of Period	$ 25,258		$ 15,891		$ 11,195		$ 11,114

[1] Charges to other accounts primarily relates to amounts acquired through acquisitions and net translation adjustments.