Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net sales	$ 530,579	$ 534,430
Cost of sales	286,023	281,554
Gross profit	244,556	252,876
Operating expenses:
Research and development and other engineering	21,918	20,747
Selling	54,499	48,667
General and administrative	70,193	63,707
Total operating expenses	146,610	133,121
Integration costs	2,046	1,442
Net gain on disposal of assets	(198)	(50)
Income from operations	96,098	118,363
Interest income (expense), net and other finance costs	351	(570)
Other & foreign exchange gain (loss), net	1,969	(398)
Income before taxes	98,418	117,395
Provision for income taxes	22,988	29,441
Net income	75,430	87,954
Other comprehensive income
Translation adjustment	(19,642)	4,560
Unamortized pension adjustments	(73)	218
Cash flow hedge adjustment, net of tax	5,118	(4,705)
Comprehensive net income	$ 60,833	$ 88,027
Net income per common share:
Basic	$ 1.78	$ 2.06
Diluted	$ 1.77	$ 2.05
Weighted average number of shares outstanding
Basic	42,386	42,610
Diluted	42,630	42,827
Cash dividends declared per common share	$ 0.27	$ 0.26

Other & foreign exchange loss, net

No definition available.

Name:	ssd_OtherForeignExchangeLossNet
Namespace Prefix:	ssd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use; (3) to conduct internal product testing; (4) or to provide engineering support to customers in the form of testing services or product uses, specifications or requirements.

+ References

No definition available.