Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2019

Revenue Recognition [Abstract]

Disaggregation Of Revenue

		2019		2018		2017
Domestic hospitals	$	144,538	$	138,432	$	128,240
International hospitals		85,241		81,203		23,791
International distributors		40,427		36,989		30,805
CardioGenesis cardiac laser therapy		6,016		6,217		6,866
Total sources of revenue	$	276,222	$	262,841	$	189,702