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v3.25.3

Long-Term Debt (Narrative) (Details) - USD ($) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2019 | Jun. 30, 2021 | Sep. 30, 2017 | Sep. 27, 2025 | Sep. 28, 2024 | Dec. 31, 2010
Debt Instrument [Line Items] |  |  |  |  |  |
Property and equipment with undepreciated cost pledge as collateral for long term debt |  |  |  | $ 241,700,000 |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  |  | us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember |  |
Line of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility borrowing capacity |  |  |  | $ 150,000,000.0 |  |
Borrowings outstanding |  |  |  | $ 0 |  |
Derivative maturity date |  |  |  | Jun. 01, 2030 |  |
Letter of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility borrowing capacity |  |  |  | $ 10,000,000.0 |  |
Borrowings outstanding |  |  |  | 500,000 |  |
Cash Flow Hedging [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Other comprehensive income (loss), net of income taxes |  |  |  | (1,100,000) | $ 6,500,000 |
Unrealized gains included in other assets |  |  |  | $ 7,400,000 | $ 8,900,000 |
Interest Rate Swap [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Derivative, fixed interest rate |  |  |  | 3.962% |  |
Senior Notes, Maturing 2031 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument principal amount |  | $ 350,000,000.0 |  |  |  |
Debt instrument stated interest rate |  | 4.00% |  | 4.00% |  |
Maturity period of senior notes |  | 2031 |  |  |  |
Senior Notes, Maturing 2031 [Member] | May Redeem Prior to June 15, 2026 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, redemption price as percentage of principal amount |  |  |  | 100.00% |  |
Senior Notes, Maturing 2031 [Member] | May Redeem Prior to June 15, 2024 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, redemption price as percentage of principal amount |  |  |  | 104.00% |  |
Debt instrument redemption percentage |  |  |  | 40.00% |  |
Debt instrument redemption percentage outstanding |  |  |  | 60.00% |  |
Secured Debt Maturing October 2027 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt maturity date |  |  | Oct. 01, 2027 |  |  |
Secured borrowing |  |  | $ 60,000,000 |  |  |
Secured Debt Maturing October 2027 [Member] | Interest Rate Swap [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Derivative notional amount |  |  |  | $ 12,500,000 |  |
Derivative, fixed interest rate |  |  |  | 3.962% |  |
Derivative basis spread |  |  |  | 1.75% |  |
Monthly principal amortization |  |  |  | $ 500,000 |  |
Derivative maturity date |  |  |  | Oct. 01, 2027 |  |
Secured Debt Maturing January 2030 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument principal amount | $ 155,000,000 |  |  |  |  |
Debt maturity date | Jan. 01, 2030 |  |  |  |  |
Secured Debt Maturing January 2030 [Member] | Interest Rate Swap [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Derivative notional amount |  |  |  | $ 109,100,000 |  |
Derivative, fixed interest rate |  |  |  | 2.998% |  |
Derivative basis spread |  |  |  | 1.60% |  |
Monthly principal amortization |  |  |  | $ 650,000 |  |
Recovery Zone Facility Bonds [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt maturity date |  |  |  | Jan. 01, 2036 |  |
Annual amount of redemption of bonds |  |  |  | $ 4,500,000 |  |
Mandatory bonds redemption beginning period |  |  |  | Jan. 01, 2014 |  |
Mandatory bonds redemption period end date |  |  |  | Dec. 17, 2029 |  |
Total amount of bonds funded |  |  |  |  |  | $ 99,700,000

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