Nature of Business and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Reconciliation of the numerator and denominator utilized in the computation of basic and diluted earnings per share

Supplemental cash flow disclosure

Supplemental cash flow disclosure (in thousands)

	Year Ended December 31,
	2020		2019		2018
Cash paid for:
Interest	$	20,806	$	21,544	$	14,183
Taxes	$	40,387	$	52,146	$	83,259
Non-cash transactions:
Stock issued for business acquisition	$	7,335	$	—	$	—

Stock-based compensation expense and related tax benefit recognized in the Consolidated Statements of Income and capitalized in the Consolidated Balance Sheets

Changes in the balances of each component of accumulated other comprehensive earnings (loss)

The following table sets forth the changes in the balances of each component of accumulated other comprehensive earnings (loss) for the year ended December 31, 2020.

	Pension Plans Items		Interest Rate Swap Contracts		Currency Forward Contracts		Foreign Currency Items		Total
Balance, December 31, 2019	$	(740)	$	(796)	$	—	$	(164,409)	$	(165,945)
Other comprehensive income (loss) before reclassifications, net of tax	(192)		(772)		2,949		5,974		7,959
Balance, December 31, 2020	$	(932)	$	(1,568)	$	2,949	$	(158,435)	$	(157,986)