SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 03, 2010
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 8,777	$ 11,562		$ 7,654
Additions charged to costs and expenses	6,730	4,066	8,541
Deductions	(4,827)	(6,851)	(4,633)
Balance at end of period	10,680	8,777	11,562	7,654
Valuation Allowance on Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	2,878	4,667		13,376
Additions charged to costs and expenses	763	0	258
Deductions	0	(1,789)	(8,967)
Balance at end of period	$ 3,641	$ 2,878	$ 4,667	$ 13,376