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Debt (Narrative) (Details) - USD ($) | 6 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Dec. 29, 2029 | Dec. 28, 2028 | Aug. 08, 2026 | Aug. 08, 2025 | Aug. 08, 2024 | Dec. 31, 2023 | Dec. 09, 2022 | Jul. 30, 2015
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Document Period End Date | Jun. 30, 2024 |  |  |  |  |  |  |  |  |
Payments of Debt Issuance Costs | $ 0 | $ 72,000 |  |  |  |  |  |  |  |
Costs associated with amendment | 1,921,000 |  |  |  |  |  |  | $ 2,328,000 |  |
Line of Credit Facility, Remaining Borrowing Capacity | 35,000,000.0 |  |  |  |  |  |  |  |  |
Senior unsecured notes, net | 311,398,000 |  |  |  |  |  |  | 336,207,000 |  |
Letters of Credit Outstanding, Amount | 5,200,000 |  |  |  |  |  |  | 13,500,000 |  |
Notes payable | 95,000 |  |  |  |  |  |  | 12,981,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  | 3.15%
2026 Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior unsecured notes, net | 75,000,000 |  |  |  |  |  |  | 75,000,000 |  |
2027 Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior unsecured notes, net | 37,500,000 |  |  |  |  |  |  | 37,500,000 |  |
2028 Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior unsecured notes, net | 100,000,000 |  |  |  |  |  |  | 125,000,000 |  |
2029 Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior unsecured notes, net | 100,000,000 |  |  |  |  |  |  | 100,000,000 |  |
Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Costs associated with amendment | 1,102,000 |  |  |  |  |  |  | 1,293,000 |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  | $ 300,000,000 | $ 35,000,000.0
Borrowings on lines of credit | $ 0 |  |  |  |  |  |  | $ 0 |  |
Forecast [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five |  |  | $ 70,000,000 |  |  |  |  |  |  |
Long-Term Debt, Maturity, Year Two |  |  |  |  |  | $ 12,500,000 |  |  |  |
Long-Term Debt, Maturity, Year One |  |  |  |  |  |  | $ 12,500,000 |  |  |
Long-Term Debt, Maturity, Year Three |  |  |  |  | $ 50,000,000.0 |  |  |  |  |
Long-Term Debt, Maturity, Year Five |  |  |  | $ 30 |  |  |  |  |  |

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- Definition For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD. + References No definition available. + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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