Segment And Geographic Information (Schedule Of Net Revenues By Geographic Location) (Details) - USD ($) $ in Thousands	3 Months Ended																	12 Months Ended
	Dec. 31, 2019	[1]	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	[1]	Sep. 30, 2017	[1]	Jun. 30, 2017	[1]	Mar. 31, 2017	[1]	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total revenues	$ 69,697		$ 67,881	$ 71,139	$ 67,505	$ 67,799	$ 64,598	$ 68,496	$ 61,948	$ 52,826		$ 43,999		$ 47,818		$ 45,059		$ 276,222	$ 262,841	$ 189,702
Domestic [Member]
Total revenues																		150,553	144,651	135,102
Foreign [Member]
Total revenues																		$ 125,669	$ 118,190	$ 54,600

[1] In December 2017 we completed our acquisition of JOTEC, which is operated as a wholly-owned subsidiary of CryoLife.