Financial Instruments Measured at Fair Value (Tables)

3 Months Ended

Apr. 01, 2017

Fair Value Disclosures [Abstract]

Description of Types of Interest Rate Fair Value Hedging Instruments Used

The terms of our outstanding interest rate swap contracts at April 1, 2017 are as follows:

Maturity Date	Notional Amount	Interest rate due from counterparty	Interest rate due to counterparty
April 2020	50,000	6.000%	6 mo. USD LIBOR + 3.896
June 2018	50,000	6.875%	6 mo. USD LIBOR + 5.301

Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis Table [Text Block]

The following table presents assets (liabilities) measured at fair value on a recurring basis at April 1, 2017:

	Balance Sheet Location	Level 1		Level 2			Level 3			Total
Cash equivalents	Other assets	$	1,776	$	—		$	—		$	1,776
Available-for-sale securities	Other assets	40,777		—			—			40,777
Interest rate swaps	Other assets	—		56			—			56
Foreign exchange contracts	Other current assets	—		1,467			—			1,467
Foreign exchange contracts	Accrued expenses	—		(4,751		)	—			(4,751		)
Contingent consideration	Accrued expenses / Other liabilities	—		—			(6,150		)	(6,150		)
		$	42,553	$	(3,228	)	$	(6,150	)	$	33,175

The following table presents assets (liabilities) measured at fair value on a recurring basis at December 31, 2016:

	Balance Sheet Location	Level 1		Level 2			Level 3			Total
Cash equivalents	Other assets	$	2,660	$	—		$	—		$	2,660
Available-for-sale securities	Other assets	37,915		—			—			37,915
Interest rate swaps	Other assets	—		152			—			152
Foreign exchange contracts	Other current assets	—		4,685			—			4,685
Foreign exchange contracts	Accrued expenses	—		(3,444		)	—			(3,444		)
Contingent consideration	Accrued expenses / Other liabilities	—		—			(4,027		)	(4,027		)
		$	40,575	$	1,393		$	(4,027	)	$	37,941

Available-for-sale Securities [Text Block]

The fair value of the company's available-for-sale securities is as follows:

	April 1, 2017				December 31, 2016
	Marubun		Mutual Funds		Marubun		Mutual Funds
Cost basis	$	10,016	$	18,147	$	10,016	$	18,097
Unrealized holding gain	5,059		7,555		3,806		5,996
Fair value	$	15,075	$	25,702	$	13,822	$	24,093

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Text Block]

The effects of derivative instruments on the company's consolidated statements of operations and other comprehensive income are as follows:

	Quarter Ended
	April 1, 2017			April 2, 2016
Loss Recognized in Income
Foreign exchange contracts	$	(8,939	)	$	(3,439	)
Interest rate swaps	(158		)	(149		)
Total	$	(9,097	)	$	(3,588	)
Gain (Loss) Recognized in Other Comprehensive Income before reclassifications
Foreign exchange contracts	$	176		$	(846	)
Interest rate swaps	$	—		$	—