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Business Combinations - Biomedical Systems Corporation (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 03, 2014	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Fair value of assets acquired:
Goodwill			$ 29,831	$ 29,596
BMS \| CardioNet, LLC
Acquisitions
Purchase consideration in cash	$ 8,000
Number of shares of common stock issued for acquisition	62,859
Value of common stock issued for acquisition	$ 650
Fair value of assets acquired:
Property and equipment		$ 882
Goodwill		3,559
Intangible assets		4,209
Net assets acquired		8,650
BMS \| CardioNet, LLC \| Customer relationships
Fair value of assets acquired:
Intangible assets		$ 2,100
Estimated Useful Life		15 years
BMS \| CardioNet, LLC \| Technology
Fair value of assets acquired:
Intangible assets		$ 1,849
Estimated Useful Life		4 years
BMS \| CardioNet, LLC \| Covenants not to compete
Fair value of assets acquired:
Intangible assets		$ 260
Estimated Useful Life		7 years