Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure Text Block [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The components of accumulated other comprehensive loss consists of the following

	Year ended December 31,
	2019			2018			2017
Net derivative instruments, beginning of year	$	136		$	37		$	(17	)
Net derivative instrument gain (loss), net of tax		(84	)		99			54
Net derivative instruments, end of year		52			136			37
Cumulative translation adjustments, beginning of year		(33,786	)		(17,869	)		(57,965	)
Translation adjustments		(6,119	)		(15,917	)		40,096
Cumulative translation adjustments, end of year		(39,905	)		(33,786	)		(17,869	)
Accumulated other comprehensive loss	$	(39,853	)	$	(33,650	)	$	(17,832	)