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Basis of Presentation and Significant Accounting Policies Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Jun. 30, 2018
Schedule of Cash Flow Supplemental Information [Line Items] |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] | Supplemental Disclosure of Cash Flow Information
|  | Six Months Ended June 30,
|  | 2018 |  | 2017
Cash paid during the period for: |  |  |  |
Income taxes |  | $ | 26,910 |  |  | $ | 16,012 |
Interest on long-term debt and investment agreements |  | 157,896 |  |  | 37,471 |
Non-cash financing activities: |  |  |  |
Decrease in long-term debt as a result of an exchange for investment securities |  | $ | — |  |  | $ | 55,426 |
Rehabilitation exit transaction discharge of all Deferred Amounts and cancellation of certain General Account Surplus Notes |  | 1,918,561 |  |  | — |
Reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets to the Consolidated Statements of Cash Flows: |  |  |  |
Cash and cash equivalents |  | $ | 44,398 |  |  | $ | 54,238 |
Restricted cash |  | 1,052 |  |  | 5,015 |
Total cash, cash equivalents, and restricted cash shown on the Consolidated Statements of Cash Flows |  | $ | 45,450 |  |  | $ | 59,253 |
In addition to the non-cash financing activities disclosed in the above table, the Rehabilitation Exit Transactions involved the exchange of cash and non-cash consideration for the discharge of all Deferred Amounts and cancellation of certain General Account Surplus Notes. Refer to Note 1. Background and Business Description of this Form 10-Q and Note 1. Background and Business Description in the Notes to Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 for further details of the Rehabilitation Exit Transactions.

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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