Income Taxes	9 Months Ended
Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	4. Income Taxes The Company provides for income taxes at the end of each interim period based on the estimated effective tax rate for the full fiscal year in addition to discrete events which impact the interim period. The Company’s effective tax rate differs from the U.S. statutory rate principally due to the rate impact of uncertain tax positions, valuation allowance changes and state taxes. Cumulative adjustments to the tax provision are recorded in the interim period in which a change in the estimated annual effective rate is determined. The Company’s tax provision was $0.7 million and $1.9 million for the three and nine months ended September 30, 2015, respectively, compared to a tax benefit of $0.1 million and $0.4 million for the three and nine months ended September 30, 2014, respectively. In connection with the Company’s acquisition of the medical imaging business from Bristol-Myers Squibb, or BMS, in 2008, the Company obtained a tax indemnification agreement with BMS related to certain tax obligations arising prior to the acquisition of the Company, for which the Company has the primary legal obligation. The tax indemnification receivable is recognized within other long-term assets. The changes in the tax indemnification asset are recognized within other expense, net in the condensed consolidated statement of operations. In accordance with the Company’s accounting policy, the change in the tax liability and penalties and interest associated with these obligations (net of any offsetting federal or state benefit) is recognized within the tax provision. Accordingly, as these reserves change, adjustments are included in the tax provision while the offsetting adjustment is included in other expense, net. Assuming that the receivable from BMS continues to be considered recoverable by the Company, there is no net effect on earnings related to these liabilities and no net cash outflows. On March 13, 2014, New York State, BMS, the Company and a relator entered into a Stipulation and Settlement Agreement and other related agreements, or collectively the Settlement Documents, to resolve an investigation by the Office of the Attorney General of New York State, claims relating to certain New York State and New York City tax matters and related claims under the New York False Claims Act. The claims at issue arose during the period from January 1, 2002 through December 31, 2006, which predated the acquisition of the medical imaging business from BMS in January 2008 and are subject to the tax indemnification agreement described above. Pursuant to the Settlement Documents, BMS paid (on behalf of itself and the Company) $6.3 million, and neither BMS nor the Company admitted any liability. The Company received a full release from New York State, New York City and the relator with respect to the claims at issue. During the nine months ended September 30, 2015, BMS, on behalf of the Company, made payments totaling $1.9 million to a number of states in connection with state income tax settlements. Within the next twelve months, unrecognized tax benefits of $0.1 million may be recognized associated with transfer pricing due to the closing of the statute of limitations.

4. Income Taxes

The Company provides for income taxes at the end of each interim period based on the estimated effective tax rate for the full fiscal year in addition to discrete events which impact the interim period. The Company’s effective tax rate differs from the U.S. statutory rate principally due to the rate impact of uncertain tax positions, valuation allowance changes and state taxes. Cumulative adjustments to the tax provision are recorded in the interim period in which a change in the estimated annual effective rate is determined. The Company’s tax provision was $0.7 million and $1.9 million for the three and nine months ended September 30, 2015, respectively, compared to a tax benefit of $0.1 million and $0.4 million for the three and nine months ended September 30, 2014, respectively.

In connection with the Company’s acquisition of the medical imaging business from Bristol-Myers Squibb, or BMS, in 2008, the Company obtained a tax indemnification agreement with BMS related to certain tax obligations arising prior to the acquisition of the Company, for which the Company has the primary legal obligation. The tax indemnification receivable is recognized within other long-term assets. The changes in the tax indemnification asset are recognized within other expense, net in the condensed consolidated statement of operations. In accordance with the Company’s accounting policy, the change in the tax liability and penalties and interest associated with these obligations (net of any offsetting federal or state benefit) is recognized within the tax provision. Accordingly, as these reserves change, adjustments are included in the tax provision while the offsetting adjustment is included in other expense, net. Assuming that the receivable from BMS continues to be considered recoverable by the Company, there is no net effect on earnings related to these liabilities and no net cash outflows.

On March 13, 2014, New York State, BMS, the Company and a relator entered into a Stipulation and Settlement Agreement and other related agreements, or collectively the Settlement Documents, to resolve an investigation by the Office of the Attorney General of New York State, claims relating to certain New York State and New York City tax matters and related claims under the New York False Claims Act. The claims at issue arose during the period from January 1, 2002 through December 31, 2006, which predated the acquisition of the medical imaging business from BMS in January 2008 and are subject to the tax indemnification agreement described above. Pursuant to the Settlement Documents, BMS paid (on behalf of itself and the Company) $6.3 million, and neither BMS nor the Company admitted any liability. The Company received a full release from New York State, New York City and the relator with respect to the claims at issue.

During the nine months ended September 30, 2015, BMS, on behalf of the Company, made payments totaling $1.9 million to a number of states in connection with state income tax settlements. Within the next twelve months, unrecognized tax benefits of $0.1 million may be recognized associated with transfer pricing due to the closing of the statute of limitations.