Derivative Financial Instruments and Fair Value Measurements (Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis ) (Details) - USD ($) $ in Thousands		Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016		Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Inventories Carried At Market				$ 0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent Consideration		$ (11,153)	$ (15,130)	(15,279)		$ (15,051)	$ (21,208)	$ (21,010)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Inventories Carried At Market	[1]	4,107		8,231
Contingent Consideration	[2]	(11,153)		(15,279)
Embedded Derivative	[3]	2,690		2,944
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Forward [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset Notional Amount		(1,579)		1,345	[4]
Cash Flow Hedge Derivative Instrument Assets At Fair Value	[5]	1,176
Fair Value, Measurements, Recurring [Member] | Short [Member] | Future And Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Derivative Asset	[6]	544		787
Unrealized Derivative Liability	[6]	(323)		(916)
Fair Value, Measurements, Recurring [Member] | Long [Member] | Future And Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Derivative Asset	[6]	3		0
Unrealized Derivative Liability	[6]	(9)		(8)
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Inventories Carried At Market	[1]	0
Contingent Consideration	[2]	0		0
Embedded Derivative	[3]	0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Exchange Forward [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset Notional Amount		0		0	[4]
Cash Flow Hedge Derivative Instrument Assets At Fair Value	[5]	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Short [Member] | Future And Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Derivative Asset	[6]	5		43
Unrealized Derivative Liability	[6]	0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Long [Member] | Future And Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Derivative Asset	[6]	0		0
Unrealized Derivative Liability	[6]	0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Inventories Carried At Market	[1]	4,107		8,231
Contingent Consideration	[2]	0		0
Embedded Derivative	[3]	0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Forward [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset Notional Amount		(1,579)		1,345	[4]
Cash Flow Hedge Derivative Instrument Assets At Fair Value	[5]	1,176
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Short [Member] | Future And Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Derivative Asset	[6]	539		744
Unrealized Derivative Liability	[6]	(323)		(916)
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Long [Member] | Future And Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Derivative Asset	[6]	3		0
Unrealized Derivative Liability	[6]	(9)		(8)
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Inventories Carried At Market	[1]	0		0
Contingent Consideration	[2]	(11,153)		(15,279)
Embedded Derivative	[3]	2,690		2,944
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Exchange Forward [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset Notional Amount		0		0	[4]
Cash Flow Hedge Derivative Instrument Assets At Fair Value	[5]	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Short [Member] | Future And Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Derivative Asset	[6]	0		0
Unrealized Derivative Liability	[6]	0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Long [Member] | Future And Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Derivative Asset	[6]	0		0
Unrealized Derivative Liability	[6]	$ 0		$ 0

[1] Inventories carried at market are included in inventories on the consolidated balance sheets.

[2] Contingent consideration obligations are included in long-term liabilities (including the current portion thereof) on the consolidated balance sheets.

[3] The embedded derivative is included in other assets (long-term) on the consolidated balance sheets.

[4] F orward foreig n currency contracts not designated as a hedge are included in accounts receivable or accounts payable and accrued liabilities on the consolidated balance sheets.

[5] F orward foreign currency contracts designated as a hedge are included in other assets or other current liabilities on the consolidated balance sheets.

[6] Unrealized short-term derivative asset is included in prepaid expenses and other current assets, unrealized long-term derivative asset is included in other assets, unrealized short-term derivative liability is included in other current liabilities and unrealized long-term derivative liability is included in long-term liabilities on the consolidated balance sheets.