XML 123 R66.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Fair Value Measurements - Schedule of Book Value and Estimated Fair Value of Debt Instruments, Excluding Debt Financing Costs (Detail) - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
Book value of debt instruments, excluding debt financing costs:    
Current maturities of long-term debt and finance lease liabilities $ 6,349 $ 18,263
Long-term debt and finance lease liabilities 687,659 686,594
Total debt - principal 694,008 704,857
Fair value of debt instruments, excluding debt financing costs 700,631 705,875
Excess of fair value over book value $ 6,623 $ 1,018