Basis of Presentation, Summary of Significant Accounting Policies and Change in Accounting Principle (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of restricted cash and cash equivalents | Restricted cash and restricted investments include cash and investments used to collateralize various contractual obligations (in thousands) as follows:
(1) Represents restricted cash related to collateral for letters of credit required in conjunction with lease agreements. See Note 9 for further discussion of our lease commitments. (2) Represents collateral for letters of credit held with financial institutions for risk-sharing arrangements. The collateral amount is invested in restricted certificates of deposit with original maturities in excess of 12 months. The restricted investments are classified as held-to-maturity and stated at amortized cost. Fair value of the certificates of deposit is determined using Level 2 inputs and approximates amortized cost as of June 30, 2017. See Note 9 for further discussion of our risk-sharing arrangements. (3) Represents cash held on behalf of partners to process PBM and other claims. |