| Component: (Network and Table) | |
|---|---|
| Network | 2405403 - Disclosure - PROPERTY AND EQUIPMENT Schedule of Property and Equipment (Details) (http://www.athenahealth.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails) |
| Table | Property, Plant and Equipment [Table] |
| Reporting Entity [Axis] | 0001131096 (http://www.sec.gov/CIK) |
| Property, Plant and Equipment [Line Items] | Period [Axis] | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2016-12-31 | 2015-12-31 | |||||||||||||||||
| Property, Plant and Equipment, Type [Axis] | Property, Plant and Equipment, Type [Axis] | |||||||||||||||||
| Equipment | Furniture and fixtures | Leasehold improvements | Aircraft | Building | Building improvements | Land | Land improvements | Property, Plant and Equipment, Type [Domain] | Equipment | Furniture and fixtures | Leasehold improvements | Aircraft | Building | Building improvements | Land | Land improvements | Property, Plant and Equipment, Type [Domain] | |
Total property and equipment, at cost | ||||||||||||||||||
Accumulated depreciation | ( | ( | ||||||||||||||||
Construction in progress | ||||||||||||||||||
Property and equipment, net | 347,700,000 | 321,500,000 | ||||||||||||||||