General (Details 5) (USD $)	3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended		9 Months Ended				9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014 Short Term Contingent Consideration	Sep. 30, 2014 Long Term Contingent Consideration]	Sep. 30, 2014 CDMI	Sep. 30, 2014 CDMI	Apr. 30, 2014 CDMI	Sep. 30, 2014 CDMI Minimum	Sep. 30, 2014 CDMI Maximum	Sep. 30, 2014 Cobalt	Jul. 01, 2014 Cobalt	Sep. 30, 2014 Cobalt Minimum	Sep. 30, 2014 Cobalt Maximum
Contingenct consideration disclosures
Maximum potential contingent payments							$ 165,000,000				$ 6,000,000
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)								0.20%	75.90%			0.00%	69.90%
Estimated undiscounted future contingent payments							61,700,000				4,200,000
Fair value of the contingent consideration	51,981,000	51,981,000	4,000,000	48,000,000	48,800,000	48,800,000
Change in fair value of the contingent consideration	1,900,000	3,132,000			1,800,000	3,000,000
Liability for contingent consideration
Balance as of beginning of period			4,000,000	48,000,000
Contingent consideration					45,778,000	45,778,000	45,778,000			3,071,000
Interest accretion	1,900,000	3,132,000			1,800,000	3,000,000
Balance as of end of period	$ 51,981,000	$ 51,981,000	$ 4,000,000	$ 48,000,000	$ 48,800,000	$ 48,800,000