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Treasury (Tables) | 3 Months Ended
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Mar. 31, 2018
Equity [Abstract] |
Summary of Cash, Cash Equivalents and Restricted Cash Reported In Condensed Consolidated Statements of Cash Flows | Cash, cash equivalents, and restricted cash as reported in the condensed consolidated statements of cash flows are presented separately on our condensed consolidated balance sheets as follow (in thousands):
| March 31, |  |  | December 31, |
| 2018 |  |  | 2017 |
Cash and cash equivalents | $ | 73,053 |  |  | $ | 74,423 |
Restricted cash (a) |  | 93,163 |  |  |  | 92,874 |
Total cash, cash equivalents and restricted cash | $ | 166,216 |  |  | $ | 167,297 |
(a) Restricted cash, associated with an insurance subsidiary, is included in other assets on the accompanying consolidated balance sheet. |

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