Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 3,219	$ 3,575	$ 3,553	$ 6,207
Foreign currency translation adjustments	(380)	(5,637)	1,333	(3,205)
Change in fair value of interest rate cap, net of tax	0	57	0	205
Change in fair value of interest rate swap, net of tax	0	4	0	59
Comprehensive income (loss)	$ 2,839	$ (2,001)	$ 4,886	$ 3,266

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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