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Indebtedness (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2005 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2004
Maximum borrowing percentage |  | 10.00% |  |
Borrowing threshold of FHLBI |  | 20 |  |
Debt Issuance Costs, Gross |  | $ 3,300 |  |
Long-term debt |  | 506,050 | $ 550,743 |
Five Point Three Hundred Seventy Five Percent Senior Notes [Member] |  |  |  |
Long-term Debt, Gross |  | $ 300,000 |  |
Interest Rate |  | 5.375% |  |
Discount for notes issued |  | $ 5,900 |  |
Net proceeds from the issuance |  | 290,800 |  |
Five Point Eight Hundred Seventy Five Percent Senior Notes [Member] |  |  |  |
Long-term Debt, Gross |  | $ 185,000 |  |
Interest Rate |  | 5.875% |  |
Debt Retirement Costs Before Tax |  | $ 4,200 |  |
Debt Retirement Costs Net of Tax |  | 3,300 |  |
Proceeds From Debt Issuance After Redemption |  | 106,000 |  |
Three Point Zero Three Percent Borrowing From Federal Home Loan Bank Due December 16, 2026 [Member] |  |  |  |
Long-term Debt, Gross |  | $ 60,000 |  |
Interest Rate |  | 3.03% |  |
Federal Home Loan Bank Advances |  |  | 45,000 |
Net proceeds from the issuance |  |  | 15,000 |
Six Point Seventy Percent Senior Notes due 2035 [Member] |  |  |  |
Long-term Debt, Gross |  | $ 100,000 |  |
Interest Rate |  | 6.70% |  |
Acceleration of principal |  | $ 10,000 |  |
Discount for notes issued | $ 700 |  |  |
Effective yield | 6.754% |  |  |
Net proceeds from the issuance | $ 50,000 |  |  |
Seven Point Twenty Five Percent Senior Notes due 2034 [Member] |  |  |  |
Long-term Debt, Gross |  | $ 50,000 |  |
Interest Rate |  | 7.25% |  |
Acceleration of principal |  | $ 10,000 |  |
Discount for notes issued |  |  |  | $ 100
Effective yield |  |  |  | 7.27%
Bond proceeds to Insurance Subsidiaries as capital |  |  |  | $ 25,000
Line of Credit expires Dec.20, 2022 [Member] |  |  |  |
Line of credit borrowing capacity |  | 50,000 |  |
Line of credit, maximum borrowing capacity |  | 125,000 |  |
Acceleration of principal |  | $ 20,000 |  |
Maximum borrowing percentage |  | 10.00% |  |
One Point Sixty One Percent Borrowing From Federal Home Loan Bank Due July 21, 2021 [Member] |  |  |  |
Long-term Debt, Gross |  | $ 25,000 |  |
Interest Rate |  | 1.61% |  |
One Point Fifty Six Percent Borrowing From Federal Home Loan Bank Due August 16, 2021 [Member] |  |  |  |
Long-term Debt, Gross |  | $ 25,000 |  |
Interest Rate |  | 1.56% |  |
Federal Home Loan Bank of Indianapolis [Member] |  |  |  |
Aggregate investment in FHLBI |  | $ 5,700 | 5,700 |
Federal Home Loan Bank of New York [Member] |  |  |  |
Aggregate investment in FHLBI |  | $ 800 | $ 3,100 |

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- Definition This amount is a multiple of the Company's aggregate investment in the Federal Home Loan Bank representing the Company's ability to borrow from the Federal Home Loan Bank. + References No definition available. + Details
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