v3.21.1
Fair Value Measurements: - Carrying amount and estimated fair value of senior notes and junior subordinated debentures (Details) - Hman Group holdings Inc and subsidiaries - USD ($)
$ in Thousands
Mar. 27, 2021
Dec. 26, 2020
Dec. 28, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Gross $ 1,594,934 $ 1,549,792 $ 1,601,632
6.375% Senior Notes, due 2022      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Gross   328,333 327,222
Estimated Fair Value   327,525 305,250
Junior Subordinated Debentures      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Gross   123,295 124,814
Estimated Fair Value   $ 128,022 $ 148,731