Fair Value Measurements - Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Fair Value, Inputs, Level 3 [Member] - Fair Value, Measurements, Recurring $ in Thousands	6 Months Ended
	Jul. 03, 2016 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 3,000
Payment of contingent consideration	(337)
Fair value adjustment to the contingent consideration	(463)
Ending balance	$ 2,200