Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 534,430	$ 493,570
Cost of sales	281,554	256,789
Gross profit	252,876	236,781
Operating expenses:
Research and development and other engineering	20,747	15,866
Selling	48,667	36,836
General and administrative	63,707	53,774
Total operating expenses	133,121	106,476
Acquisition and integration related costs	1,442	6,951
Net gain on disposal of assets	(50)	(1,083)
Income from operations	118,363	124,437
Interest expense, net and other finance costs	(570)	(212)
Other & foreign exchange loss, net	(398)	(216)
Income before taxes	117,395	124,009
Provision for income taxes	29,441	29,433
Net income	87,954	94,576
Other comprehensive income
Translation adjustment	4,560	(3)
Unamortized pension adjustments	218	(172)
Cash flow hedge adjustment, net of tax	(4,705)	(9,946)
Comprehensive net income	$ 88,027	$ 84,455
Net income per common share:
Basic	$ 2.06	$ 2.19
Diluted	$ 2.05	$ 2.18
Weighted average number of shares outstanding
Basic	42,610	43,179
Diluted	42,827	43,376
Cash dividends declared per common share	$ 0.26	$ 0.25

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.