Short-Term Investments

3 Months Ended

Mar. 31, 2018

Cash and Cash Equivalents [Abstract]

Short-Term Investments

Note 8 – Short-Term Investments

Certificates of deposit and fixed deposits whose original maturity is greater than three months and is one year or less are classified as short-term investments and certificates of deposit and fixed deposits whose maturity is greater than one year at the balance sheet date are classified as non-current assets in our condensed consolidated balance sheets. The purchase of any certificates of deposit or fixed deposits that are classified as short-term investments or non-current assets appear in the investing section of our condensed consolidated statements of cash flows.

Restricted Deposits

We purchase certificates of deposit that mature within twelve months and are used to secure or collateralize letters of credit securing our workers’ compensation obligations. At each of March 31, 2018 and December 31, 2017, certificates of deposit totaling $0.8 million were restricted in use and were classified as short-term investments on our condensed consolidated balance sheets.