Debt and Financing Arrangements (Details)			3 Months Ended	9 Months Ended
	Jul. 03, 2020 USD ($)	Jul. 02, 2020	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019 USD ($)
Unsecured Local Credit Facilities
Line of Credit Facility [Line Items]
Weighted average interest rate			1.75%	1.75%						2.29%
Available borrowings			$ 60,200,000	$ 60,200,000
Other short-term borrowings, outstanding borrowings			2,700,000	2,700,000						$ 3,800,000
Base Rate | Minimum
Line of Credit Facility [Line Items]
Variable rate of interest	0.00%
Base Rate | Maximum
Line of Credit Facility [Line Items]
Variable rate of interest	1.50%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Outstanding borrowings			$ 37,700,000	$ 37,700,000						$ 50,300,000
Weighted average interest rate			2.25%	2.25%						3.54%
Available borrowings			$ 358,700,000	$ 358,700,000
Letters of credit outstanding			$ 3,600,000	$ 3,600,000
Secured leverage ratio	3.50		5.50	5.50
Leverage ratio basis spread	0.75%
Maximum commitment	$ 150,000,000.0
Revolving credit facility term	364 days
Revolving credit facility aggregate principal amount	$ 225,000,000.0
Net average secured leverage ratio	2.25
Incurred fees and expenses	$ 1,100,000
Debt issuance costs	$ 800,000
Interest expense			$ 300,000	$ 300,000
Revolving Credit Facility | Minimum
Line of Credit Facility [Line Items]
Leverage ratio basis spread	0.15%	0.15%
Revolving Credit Facility | Maximum
Line of Credit Facility [Line Items]
Leverage ratio basis spread	0.45%	0.30%
Revolving Credit Facility | Eurodollar | Minimum
Line of Credit Facility [Line Items]
Leverage ratio basis spread	1.00%
Variable rate of interest	1.00%
Revolving Credit Facility | Eurodollar | Maximum
Line of Credit Facility [Line Items]
Leverage ratio basis spread	1.75%
Variable rate of interest	2.50%
Revolving Credit Facility | Base Rate | Minimum
Line of Credit Facility [Line Items]
Variable rate of interest	0.00%
Revolving Credit Facility | Base Rate | Maximum
Line of Credit Facility [Line Items]
Variable rate of interest	0.75%
Revolving Credit Facility | Forecast
Line of Credit Facility [Line Items]
Secured leverage ratio					3.50	4.00	4.50	6.50	6.50
Letters of Credit
Line of Credit Facility [Line Items]
Outstanding borrowings			7,400,000	7,400,000						$ 14,800,000
Maximum commitment			53,800,000	53,800,000						59,800,000
Line of credit secured			$ 4,100,000	$ 4,100,000						$ 11,600,000