Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net sales	$ 596,978	$ 597,580	$ 1,127,557	$ 1,132,010
Cost of sales	318,431	310,114	604,456	591,669
Gross profit	278,547	287,466	523,101	540,341
Operating expenses:
Research and development and other engineering	22,708	21,538	44,626	42,284
Selling	55,918	50,438	110,417	99,106
General and administrative	66,383	68,767	136,577	132,474
Total operating expenses	145,009	140,743	291,620	273,864
Acquisition and integration related costs	1,590	1,859	3,636	3,301
Net gain on disposal of assets	(238)	(157)	(436)	(207)
Income from operations	132,186	145,021	228,281	263,383
Interest income (expense), net and other finance costs	2,092	(705)	2,443	(1,274)
Other & foreign exchange gain (loss), net	(1,588)	357	381	(42)
Income before taxes	132,690	144,673	231,105	262,067
Provision for income taxes	34,859	37,462	57,847	66,903
Net income	97,831	107,211	173,258	195,164
Other comprehensive income
Translation adjustments	(2,268)	(48)	(21,911)	4,509
Unamortized pension adjustments	(213)	180	(285)	400
Cash flow hedge adjustment, net of tax	2,187	(5,259)	7,306	(9,963)
Comprehensive net income	$ 97,537	$ 102,084	$ 158,368	$ 190,110
Net income per common share:
Basic	$ 2.32	$ 2.51	$ 4.09	$ 4.58
Diluted	$ 2.31	$ 2.50	$ 4.07	$ 4.55
Weighted-average number of shares outstanding
Basic	42,251	42,669	42,319	42,640
Diluted	42,418	42,813	42,534	42,857
Cash dividends declared per common share	$ 0.28	$ 0.27	$ 0.55	$ 0.53

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.