Stockholders' Equity Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	$ 1,797	$ 1,774	$ 915
Accumulated other comprehensive loss	(46,198)	(63,241)	(70,823)	$ (31,294)
Current-period other comprehensive income (loss)	17,043	7,582	(39,529)
Interest Expense
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax	(2,894)	(2,894)	(1,487)
Provision for income taxes
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	(1,097)	(1,120)	(572)
Accumulated Translation Adjustment
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive loss	(45,149)	(60,299)	(66,163)	(28,363)
Current-period other comprehensive income (loss)	15,150	5,864	(37,800)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive loss	0	(1,797)	(3,571)	(2,044)
Current-period other comprehensive income (loss)	1,797	1,774	(1,527)
Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive loss	(1,049)	(1,145)	(1,089)	$ (887)
Current-period other comprehensive income (loss)	$ 96	$ (56)	$ (202)