General (Details 5) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2015	Apr. 01, 2015	Dec. 31, 2014	Jul. 01, 2014	Apr. 30, 2014
Fair value measurement of contingent consideration
Fair value of the short term contingent consideration			$ 106,800
Fair value of the long term contingent consideration			1,609		$ 49,839
Fair value of the contingent consideration	$ 108,443	$ 58,153	108,443		58,153
Liability for contingent consideration
Balance as of beginning of period		58,153
Changes in fair value: Increase (Decrease) in contingent consideration		47,274
Payments		(16,274)
Balance as of end of period	108,443	108,443
Direct service costs and other operating expenses
Liability for contingent consideration
Changes in fair value: Increase (Decrease) in contingent consideration	$ 29,700	47,300
CDMI
Contingent consideration disclosures
Maximum potential contingent payments							$ 165,000
Fair value measurement of contingent consideration
Estimated undiscounted future contingent payments			90,400		65,700
Fair value of the short term contingent consideration			89,800
Fair value of the long term contingent consideration			300
Liability for contingent consideration
Changes in fair value: Increase (Decrease) in contingent consideration		34,600
Payments		$ (9,900)
CDMI | Minimum
Fair value measurement of contingent consideration
Fair values inputs - Discount Rate (as a percent)		0.33%
Fair value inputs - Probability Of Payment (as a percent)		0.00%
CDMI | Maximum
Fair value measurement of contingent consideration
Fair values inputs - Discount Rate (as a percent)		14.50%
Fair value inputs - Probability Of Payment (as a percent)		100.00%
Cobalt
Contingent consideration disclosures
Maximum potential contingent payments						$ 6,000
Fair value measurement of contingent consideration
Fair values inputs - Discount Rate (as a percent)		14.50%
Estimated undiscounted future contingent payments			2,700		$ 4,200
Fair value of the short term contingent consideration			1,000
Fair value of the long term contingent consideration			1,300
Liability for contingent consideration
Changes in fair value: Increase (Decrease) in contingent consideration		$ (1,200)
Payments		$ (300)
Cobalt | Minimum
Fair value measurement of contingent consideration
Fair value inputs - Probability Of Payment (as a percent)		0.00%
Cobalt | Maximum
Fair value measurement of contingent consideration
Fair value inputs - Probability Of Payment (as a percent)		50.00%
4D Pharmacy Management Systems, Inc.
Contingent consideration disclosures
Maximum potential contingent payments				$ 30,000
Fair value measurement of contingent consideration
Fair values inputs - Discount Rate (as a percent)		11.00%
Estimated undiscounted future contingent payments			16,400	$ 20,600
Net increase or decrease in contingent consideration liability		$ (4,200)
Fair value of the short term contingent consideration			$ 16,000
Liability for contingent consideration
Acquisition of 4D		19,290
Changes in fair value: Increase (Decrease) in contingent consideration		1,800
Payments		$ (6,000)
4D Pharmacy Management Systems, Inc. | Minimum
Fair value measurement of contingent consideration
Fair value inputs - Probability Of Payment (as a percent)		5.00%
4D Pharmacy Management Systems, Inc. | Maximum
Fair value measurement of contingent consideration
Fair value inputs - Probability Of Payment (as a percent)		100.00%