Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended
Apr. 10, 2014	May 31, 2014	Apr. 01, 2014 Health Dialog	Apr. 10, 2014 RediClinic item
Acquisitions
Ownership (as a percent)			100.00%	100.00%
Number of retail clinics operated				30
Combined amount paid for entities acquired, net of cash acquired	$ 65,306	$ 65,306
Cash acquired related to the acquisitions	19,865
Goodwill related to expected future synergies and operating efficiencies	$ 83,971	$ 83,971

Represents the number of retail clinics reported.

No definition available.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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- Definition

The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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