| Component: (Network and Table) | |
|---|---|
| Network | 100550 - Disclosure - Share-Based Payment - Weighted Average Assumptions for Fair Value of Stock Options (Details) (http://www.alliancehealthcareservices-us.com/20161231/taxonomy/role/DisclosureShareBasedPaymentWeightedAverageAssumptionsForFairValueOfStockOptionsDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000817135 (http://www.sec.gov/CIK) |
| Share Based Compensation [Abstract] | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31 | 2015-01-01 - 2015-12-31 | 2014-01-01 - 2014-12-31 | |
Share Based Compensation [Abstract] | |||
Weighted average assumptions for stock option awards | |||
Risk free interest rate | |||
Expected dividend yield | |||
Expected stock price volatility | |||
Average expected life (in years) | |||
Weighted average grant date fair value | |||