Fair Value Measurements - Fair Value of Company's Fixed Rate Senior Notes and Junior Subordinated Debentures (Details) - USD ($) $ in Thousands |
Sep. 26, 2020 |
Dec. 28, 2019 |
|---|---|---|
| 6.375% Senior Notes | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Debt instrument, stated rate | 6.375% | |
| 6.375% Senior Notes | Carrying Amount | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Debt | $ 328,055 | $ 327,222 |
| 6.375% Senior Notes | Estimated Fair Value | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Debt | 314,325 | 305,250 |
| Junior Subordinated Debentures | Carrying Amount | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Debt | 123,688 | 124,814 |
| Junior Subordinated Debentures | Estimated Fair Value | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Debt | $ 121,821 | $ 148,731 |