Description of Business and Summary of Significant Accounting Policies - Cumulative effect adjustment (Details) - USD ($) $ in Thousands	Dec. 30, 2021	Jan. 01, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Long-term debt	$ 204,177		$ 193,036
Deferred income taxes	26,183		33,429
Capital in excess of par	145,656		153,529
Retained earnings	$ 289,306		$ 331,897
ASU 2020-06 | Cumulative effect period of adoption adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Long-term debt		$ 21,393
Deferred income taxes		(5,584)
Capital in excess of par		(16,511)
Retained earnings		702
ASU 2020-06 | Cumulative effect period of adoption adjusted balance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Long-term debt		214,429
Deferred income taxes		27,845
Capital in excess of par		137,018
Retained earnings		$ 332,599