Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2019

Revenue Recognition And Deferred Revenue [Abstract]

Schedule of Changes in Unearned Revenue

Changes in unearned revenue were as follows:

Nine Months Ended September 30, 2019
Balance, beginning of period	$	1,597
Additions to unearned revenue		549
Reclassified to revenue		(1,211	)
Reclassified to held for sale		(168	)
Currency impacts		(20	)
Balance, end of period	$	747