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Coronavirus Pandemic ("COVID-19") - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Mar. 25, 2020	Dec. 31, 2021	Dec. 31, 2020	Mar. 27, 2020
Line of credit remaining borrowing capacity		$ 599.9
Credit Agreement [Member] | Maximum [Member]
Leverage ratio	5.00:1:00
Credit Agreement [Member] | Minimum [Member]
Leverage ratio	4.50:1:00
Letters of Credit [Member]
Letters of credit		0.1
Forecast For Fourth Quarter Of 2020 [Member] | Credit Agreement [Member]
Leverage ratio	4.75:1:00
Forecast For First Quarter Of 2021 [Member] | Credit Agreement [Member]
Leverage ratio	2020
COVID-19 [Member]
Reimbursement of Lost Revenue				$ 100,000.0
Proceeds From Contribution In Aid Of Reimbursement of Lost Revenue		$ 26.1	$ 22.0
COVID-19 [Member] | Rural Area [Member]
Reimbursement of Lost Revenue				$ 70,000.0
COVID-19 [Member] | Two Thousand Twenty Tax Year [Member]
Percentage Of Refund Of Income Tax At The Prior Period Corporate Tax Rate		35.00%
COVID-19 [Member] | Executive Officer [Member]
Decrease In Salary | %		50.00%

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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