Goodwill and Intangible Assets (Schedule of Goodwill) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Goodwill [Roll Forward]
Balance as of December 31, 2016	$ 148,811
Impact of changes in foreign currency and other	153
Balance as of March 31, 2017	148,964
U.S. Medical
Goodwill [Roll Forward]
Balance as of December 31, 2016	130,410
Impact of changes in foreign currency and other	0
Balance as of March 31, 2017	130,410
International Medical
Goodwill [Roll Forward]
Balance as of December 31, 2016	18,401
Impact of changes in foreign currency and other	153
Balance as of March 31, 2017	$ 18,554