Debt (Details texture) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
	Aug. 03, 2020	Mar. 29, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Line of Credit Facility [Line Items]
Net proceeds from credit facility and long-term debt, including current portion					$ 175,000	$ 723,054
Repayments of credit facility					135,352	393,634
Letters of Credit Outstanding, Amount			$ 10,800		10,800
Long-term Debt, Gross			800,748		800,748		$ 680,552
Loss on debt extinguishment			$ (9,126)	$ 0	(9,126)	0
Payment for Debt Extinguishment or Debt Prepayment Cost					8,509	$ 0
Write off of Deferred Debt Issuance Cost					$ (600)
Minimum
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.00%
Line of Credit Facility, Commitment Fee Percentage					0.125%
Maximum
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.375%
Line of Credit Facility, Commitment Fee Percentage					0.20%
Term Loan Facility
Line of Credit Facility [Line Items]
Net proceeds from credit facility and long-term debt, including current portion					$ 100,000
Term Loan Facility | Swedish Kronor
Line of Credit Facility [Line Items]
Net proceeds from credit facility and long-term debt, including current portion		$ 150,000
Credit Agreement
Line of Credit Facility [Line Items]
Term of agreement					5 years
Credit Agreement | United States of America, Dollars
Line of Credit Facility [Line Items]
Senior unsecured notes, interest rate			1.47%		1.47%		1.945%
Long-term Debt, Gross			$ 92,500		$ 92,500		$ 96,250
Credit Agreement | Swedish Kronor
Line of Credit Facility [Line Items]
Senior unsecured notes, interest rate			1.25%		1.25%		0.098%
Long-term Debt, Gross		$ 150,000	$ 143,248		$ 143,248		$ 143,302
Revolving Credit Facility
Line of Credit Facility [Line Items]
Net proceeds from credit facility and long-term debt, including current portion					100,000
Proceeds from credit facility					175,000
Repayments of credit facility					$ 126,000
Senior unsecured notes, interest rate			1.397%		1.397%		1.799%
Long-term Debt, Gross			$ 65,000		$ 65,000		$ 16,000
Standby Letters of Credit
Line of Credit Facility [Line Items]
Letters of Credit Outstanding, Amount			$ 248,000		$ 248,000
BANK OF AMERICA, NATIONAL ASSOCIATION [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage					0.175%
Unsecured notes | Senior 2030 Notes [Member]
Line of Credit Facility [Line Items]
Net proceeds from credit facility and long-term debt, including current portion	$ 494,200
Senior unsecured notes, interest rate			2.50%		2.50%		0.00%
Long-term Debt, Gross	$ 500,000		$ 500,000		$ 500,000		$ 0
Unsecured notes | Senior 2021 Notes [Member]
Line of Credit Facility [Line Items]
Senior unsecured notes, interest rate			0.00%		0.00%		3.125%
Long-term Debt, Gross			$ 0		$ 0		$ 425,000