Income Taxes (Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jan. 01, 2012
Reconciliation of unrecognized tax benefits
Balance at Beginning of Period	$ 18,499	$ 6,528	$ 9,062
Additions based on tax positions related to the current year	0	2,437	13
Additions for tax positions of prior years	1,543	13,356	43
Additions from current year acquisitions	0	0	3,848
Reductions for tax positions of prior years	0	0	(3,237)
Reductions as result of a lapse of applicable statutes of limitations	(1,298)	(592)	(845)
Settlements	(15,978)	(3,230)	(2,356)
Balance at End of Period	$ 2,766	$ 18,499	$ 6,528