Debt (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2021 USD ($) Interest / Debt Debt / EBITDA	Oct. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	May 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Schedule of long term debt [Abstract]
Long term debt		$ 503,629				$ 527,036
Less debt fees		(136)				(143)
Less current portion		(487)				(8,889)
Total long-term debt		503,006				518,004
Accounts receivable securitization program commitment amount			$ 30,000	$ 65,000
Maximum borrowing capacity		30,000
Aggregate amounts of contractual maturities of long-term debt [Abstract]
2022		106,504
2023		152,834
2024		83,981
2025		58,830
2026		56,000
Thereafter		45,480
Total long-term debt maturities		503,629				527,036
Debt covenants [Abstract]
Stand-by letters of credit outstanding		2,800				2,700
Short-term borrowings [Abstract]
Short-term borrowings		8,539				9,247
Current maturities of long-term debt		$ 487				$ 8,889
Weighted-average interest rates on short-term borrowings		1.55%				1.36%
Minimum [Member]
Debt covenants [Abstract]
Interest coverage, actual | Interest / Debt		21.60
Interest coverage, required | Interest / Debt		3.00
Maximum [Member]
Debt covenants [Abstract]
Debt to EBITDA, actual | Debt / EBITDA	[1]	2.04
Debt to EBITDA, required | Debt / EBITDA	[1]	3.50
LIBOR [Member]
Schedule of long term debt [Abstract]
Interest rate		0.75%
Revolving Credit Facility [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 86,000				$ 83,324
Average interest rate		1.33%				1.35%
Maximum borrowing capacity					$ 350,000
Long term debt additional disclosures [Abstract]
Remaining borrowing capacity		$ 291,200
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 86,000				$ 83,324
Revolving Credit Facility [Member] | Minimum [Member]
Schedule of long term debt [Abstract]
Maturity date		May 30, 2022
Revolving Credit Facility [Member] | Maximum [Member]
Schedule of long term debt [Abstract]
Maturity date		May 31, 2026
Other Line of Credit Facility [Member]
Long term debt additional disclosures [Abstract]
Remaining borrowing capacity		$ 22,600
U.S. Credit Facilities [Member]
Short-term borrowings [Abstract]
Short-term borrowings		7,284				138
Loans of Foreign Subsidiaries [Member]
Short-term borrowings [Abstract]
Short-term borrowings		768				220
3.66% Senior Notes due November 2023 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 75,000				75,000
Interest rate, stated percentage		3.66%
Maturity date		Nov. 30, 2023
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 75,000				75,000
3.65% Senior Notes due May 2024 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 27,000				27,000
Interest rate, stated percentage		3.65%
Maturity date		May 31, 2024
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 27,000				27,000
4.19% Senior Notes due November 2025 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 25,000				25,000
Interest rate, stated percentage		4.19%
Maturity date		Nov. 30, 2025
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 25,000				25,000
1.85% Euro-denominated Senior Notes due November 2022 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 76,017				81,672
Interest rate, stated percentage		1.85%
Maturity date		Nov. 30, 2022
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 76,017				81,672
3.06% Euro-denominated Senior Notes due November 2023 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 43,487				46,722
Interest rate, stated percentage		3.06%
Maturity date		Nov. 30, 2023
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 43,487				46,722
1.27% Euro-denominated Senior Notes due May 2024 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 56,850				61,080
Interest rate, stated percentage		1.27%
Maturity date		May 31, 2024
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 56,850				61,080
1.71% Euro-denominated Senior Notes due May 2027 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 45,480				48,864
Interest rate, stated percentage		1.71%
Maturity date		May 31, 2027
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 45,480				48,864
2.53% British Pound-denominated Notes due November 2023 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 33,829				34,176
Interest rate, stated percentage		2.53%
Maturity date		Nov. 30, 2023
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 33,829				34,176
2.76% British Pound-denominated Notes due November 2025 [Member]
Schedule of long term debt [Abstract]
Long term debt		$ 33,829				34,176
Interest rate, stated percentage		2.76%
Maturity date		Nov. 30, 2025
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 33,829				34,176
Term Loan [Member]
Schedule of long term debt [Abstract]
Long term debt		0				8,375
Credit facility, borrowings outstanding		8,400
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		0				8,375
Various Other Notes [Member]
Schedule of long term debt [Abstract]
Long term debt		1,137				1,647
Aggregate amounts of contractual maturities of long-term debt [Abstract]
Total long-term debt maturities		$ 1,137				$ 1,647

[1] Debt to EBITDA is defined in the Company’s debt covenants as total funded debt divided by the Company’s consolidated operating income excluding non-operating gains and losses and depreciation and amortization.