Sound Shore Fund N-CSR 27 Feb 25 Certified annual shareholder report (management investment company) Financial data

Form N-CSR Cover

Form N-CSR Cover	12 Months Ended
	Dec. 31, 2024
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	Sound Shore Fund, Inc.
Entity Central Index Key	0000764157
Entity Investment Company Type	N-1A
Document Period End Date	Dec. 31, 2024

Shareholder Report

Shareholder Report	12 Months Ended
	Dec. 31, 2024 USD ($) Holding
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	Sound Shore Fund, Inc.
Entity Central Index Key	0000764157
Entity Investment Company Type	N-1A
Document Period End Date	Dec. 31, 2024
C000135035
Shareholder Report [Line Items]
Fund Name	Sound Shore Fund
Class Name	Institutional
Trading Symbol	SSHVX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the Sound Shore Fund for the period of January 1, 2024, to December 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	This annual shareholder report contains important information about the Sound Shore Fund for the period of January 1, 2024, to December 31, 2024. You can find additional information about the Fund at https://soundshorefund.com/investor-resources-documents/. You can also request this information by contacting us at (800) 551-1980.
Additional Information Phone Number	(800) 551-1980
Additional Information Website	https://soundshorefund.com/investor-resources-documents/
Expenses [Text Block]	What were the Fund's costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Class $84 0.75%
Expenses Paid, Amount	$ 84
Expense Ratio, Percent	0.75%
Factors Affecting Performance [Text Block]	How did the Fund perform in the last year? It was a strong year for Sound Shore’s portfolio, finishing substantially ahead of the Russell 1000 Value Index. Within the widely followed Standard & Poor’s 500 Index, the year featured familiar winners, which got even bigger as the “Magnificent 7” now represents 33% of the cap-weighted S&P 500 Index and accounted for over 50% of that Index’s return. In stark contrast to these concentrated, passive indices, this year our performance was driven by 18 stocks (from 8 different sectors) that rose 20% or more. While many investors are focused on the exciting, high-growth potential of artificial intelligence (AI) and technology, we see compelling value in out-of-favor companies undergoing fundamental transformations, regardless of the drivers. High quality, overlooked businesses can often trade at discounted valuations, setting the stage for substantial returns as the market recognizes their true potential.
Performance Past Does Not Indicate Future [Text]	The Fund’s past performance is not a good predictor of how the Fund will perform in the future.
Line Graph [Table Text Block]	Date Institutional Class S&P 500 ® Russell 1000 ® 12/14 $1,000,000 $1,000,000 $1,000,000 3/15 $1,009,413 $1,009,505 $992,781 6/15 $1,006,668 $1,012,312 $993,856 9/15 $902,956 $947,136 $910,423 12/15 $951,645 $1,013,838 $961,732 3/16 $957,394 $1,027,503 $977,484 6/16 $973,950 $1,052,731 $1,022,285 9/16 $1,040,608 $1,093,282 $1,057,866 12/16 $1,092,459 $1,135,092 $1,128,499 3/17 $1,142,531 $1,203,949 $1,165,378 6/17 $1,183,386 $1,241,129 $1,181,048 9/17 $1,219,126 $1,296,736 $1,217,844 12/17 $1,271,695 $1,382,901 $1,282,697 3/18 $1,238,288 $1,372,403 $1,246,355 6/18 $1,248,929 $1,419,529 $1,261,009 9/18 $1,319,240 $1,528,986 $1,332,933 12/18 $1,112,765 $1,322,269 $1,176,655 3/19 $1,245,316 $1,502,733 $1,317,083 6/19 $1,301,616 $1,567,407 $1,367,717 9/19 $1,270,031 $1,594,027 $1,386,258 12/19 $1,374,245 $1,738,604 $1,488,955 3/20 $973,732 $1,397,872 $1,090,958 6/20 $1,144,812 $1,685,042 $1,246,862 9/20 $1,225,241 $1,835,506 $1,316,597 12/20 $1,483,587 $2,058,487 $1,530,583 3/21 $1,652,224 $2,185,598 $1,702,849 6/21 $1,745,667 $2,372,441 $1,791,536 9/21 $1,752,311 $2,386,249 $1,777,562 12/21 $1,839,284 $2,649,384 $1,915,681 3/22 $1,822,467 $2,527,552 $1,901,550 6/22 $1,578,069 $2,120,588 $1,669,358 9/22 $1,455,276 $2,017,048 $1,575,583 12/22 $1,648,043 $2,169,558 $1,771,280 3/23 $1,671,255 $2,332,211 $1,789,102 6/23 $1,757,784 $2,536,096 $1,861,999 9/23 $1,723,738 $2,453,079 $1,803,069 12/23 $1,939,161 $2,739,883 $1,974,317 3/24 $2,270,771 $3,029,103 $2,151,721 6/24 $2,202,172 $3,158,863 $2,105,115 9/24 $2,350,677 $3,344,812 $2,303,625 12/24 $2,381,725 $3,425,393 $2,257,992
Average Annual Return [Table Text Block]	One Year Five Year Ten Year Institutional Class 22.82% 11.62% 9.06% S&P 500 ® 25.02% 14.53% 13.10% Russell 1000 ® 14.37% 8.68% 8.49%
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Performance Table Market Index Changed [Text Block]	Effective May 1, 2024, the Fund changed its primary benchmark index from the Russell 1000 Value Index to the S&P 500 Index due to regulatory requirements. The Fund retained the Russell 1000 Value Index as a secondary benchmark because the Russell 1000 Value Index more closely aligns with the Fund's investment strategies and restrictions.
Prior Market Index Comparison [Text Block]	The Fund retained the Russell 1000 Value Index as a secondary benchmark
Updated Performance Information Location [Text Block]	Updated performance can be found at www.soundshorefund.com
AssetsNet	$ 998,549,149
Holdings Count | Holding	41
Advisory Fees Paid, Amount	$ 7,029,769
InvestmentCompanyPortfolioTurnover	77%
Additional Fund Statistics [Text Block]	Fund Statistics Total Net Assets $998,549,149 # of Portfolio Holdings 41 Portfolio Turnover Rate 77% Investment Advisory Fees Paid (Net of Expense Reimbursements) $7,029,769
Holdings [Text Block]	Asset Class Weightings (% of total investments) Value Value Common Stock 96.3% Money Market Fund 3.7%
Largest Holdings [Text Block]	Top Ten Holdings (% of total net assets) Capital One Financial Corp. 3.92% Wells Fargo & Co. 3.35% Teva Pharmaceutical Industries, Ltd., ADR 3.26% Avantor, Inc. 3.19% Coterra Energy, Inc. 3.13% NXP Semiconductors NV 2.90% Willis Towers Watson PLC 2.87% Check Point Software Technologies, Ltd. 2.85% PVH Corp. 2.84% Bath & Body Works, Inc. 2.79%
C000012417
Shareholder Report [Line Items]
Fund Name	Sound Shore Fund
Class Name	Investor
Trading Symbol	SSHFX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the Sound Shore Fund for the period of January 1, 2024, to December 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	This annual shareholder report contains important information about the Sound Shore Fund for the period of January 1, 2024, to December 31, 2024. You can find additional information about the Fund at https://soundshorefund.com/investor-resources-documents/. You can also request this information by contacting us at (800) 551-1980.
Additional Information Phone Number	(800) 551-1980
Additional Information Website	https://soundshorefund.com/investor-resources-documents/
Expenses [Text Block]	What were the Fund's costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $105 0.95%
Expenses Paid, Amount	$ 105
Expense Ratio, Percent	0.95%
Factors Affecting Performance [Text Block]	How did the Fund perform in the last year? It was a strong year for Sound Shore’s portfolio, finishing substantially ahead of the Russell 1000 Value Index. Within the widely followed Standard & Poor’s 500 Index, the year featured familiar winners, which got even bigger as the “Magnificent 7” now represents 33% of the cap-weighted S&P 500 Index and accounted for over 50% of that Index’s return. In stark contrast to these concentrated, passive indices, this year our performance was driven by 18 stocks (from 8 different sectors) that rose 20% or more. While many investors are focused on the exciting, high-growth potential of artificial intelligence (AI) and technology, we see compelling value in out-of-favor companies undergoing fundamental transformations, regardless of the drivers. High quality, overlooked businesses can often trade at discounted valuations, setting the stage for substantial returns as the market recognizes their true potential.
Performance Past Does Not Indicate Future [Text]	The Fund’s past performance is not a good predictor of how the Fund will perform in the future.
Line Graph [Table Text Block]	Date Investor Class S&P 500 ® Russell 1000 ® 12/31/14 $10,000 $10,000 $10,000 03/31/15 $10,090 $10,095 $9,928 06/30/15 $10,058 $10,123 $9,939 09/30/15 $9,017 $9,471 $9,104 12/31/15 $9,498 $10,138 $9,617 03/31/16 $9,553 $10,275 $9,775 06/30/16 $9,714 $10,527 $10,223 09/30/16 $10,376 $10,933 $10,579 12/31/16 $10,887 $11,351 $11,285 03/31/17 $11,383 $12,039 $11,654 06/30/17 $11,783 $12,411 $11,810 09/30/17 $12,135 $12,967 $12,178 12/31/17 $12,653 $13,829 $12,827 03/31/18 $12,317 $13,724 $12,464 06/30/18 $12,417 $14,195 $12,610 09/30/18 $13,114 $15,290 $13,329 12/31/18 $11,054 $13,223 $11,767 03/31/19 $12,368 $15,027 $13,171 06/30/19 $12,921 $15,674 $13,677 09/30/19 $12,603 $15,940 $13,863 12/31/19 $13,629 $17,386 $14,890 03/31/20 $9,654 $13,979 $10,910 06/30/20 $11,345 $16,850 $12,469 09/30/20 $12,137 $18,355 $13,166 12/31/20 $14,689 $20,585 $15,306 03/31/21 $16,353 $21,856 $17,028 06/30/21 $17,270 $23,724 $17,915 09/30/21 $17,326 $23,862 $17,776 12/31/21 $18,177 $26,494 $19,157 03/31/22 $18,000 $25,276 $19,016 06/30/22 $15,579 $21,206 $16,694 09/30/22 $14,363 $20,170 $15,756 12/31/22 $16,256 $21,696 $17,713 03/31/23 $16,478 $23,322 $17,891 06/30/23 $17,325 $25,361 $18,620 09/30/23 $16,976 $24,531 $18,031 12/31/23 $19,092 $27,399 $19,743 03/31/24 $22,341 $30,291 $21,517 06/30/24 $21,658 $31,589 $21,051 09/30/24 $23,109 $33,448 $23,036 12/31/24 $23,397 $34,254 $22,580
Average Annual Return [Table Text Block]	One Year Five Year Ten Year Investor Class 22.54% 11.41% 8.87% S&P 500 ® 25.02% 14.53% 13.10% Russell 1000 ® 14.37% 8.68% 8.49%
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Performance Table Market Index Changed [Text Block]	Effective May 1, 2024, the Fund changed its primary benchmark index from the Russell 1000 Value Index to the S&P 500 Index due to regulatory requirements. The Fund retained the Russell 1000 Value Index as a secondary benchmark because the Russell 1000 Value Index more closely aligns with the Fund's investment strategies and restrictions.
Prior Market Index Comparison [Text Block]	The Fund retained the Russell 1000 Value Index as a secondary benchmark
Updated Performance Information Location [Text Block]	Updated performance can be found at www.soundshorefund.com
AssetsNet	$ 998,549,149
Holdings Count | Holding	41
Advisory Fees Paid, Amount	$ 7,029,769
InvestmentCompanyPortfolioTurnover	77%
Additional Fund Statistics [Text Block]	Fund Statistics Total Net Assets $998,549,149 # of Portfolio Holdings 41 Portfolio Turnover Rate 77% Investment Advisory Fees Paid (Net of Expense Reimbursements) $7,029,769
Holdings [Text Block]	Asset Class Weightings (% of total investments) Value Value Common Stock 96.3% Money Market Fund 3.7%
Largest Holdings [Text Block]	Top Ten Holdings (% of total net assets) Capital One Financial Corp. 3.92% Wells Fargo & Co. 3.35% Teva Pharmaceutical Industries, Ltd., ADR 3.26% Avantor, Inc. 3.19% Coterra Energy, Inc. 3.13% NXP Semiconductors NV 2.90% Willis Towers Watson PLC 2.87% Check Point Software Technologies, Ltd. 2.85% PVH Corp. 2.84% Bath & Body Works, Inc. 2.79%

Shareholder Report, Line Graph

Shareholder Report, Line Graph (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
C000135035
Account Value [Line Items]
Line Graph and Table Measure Name	Institutional
S&P 500® Index
Account Value [Line Items]
Line Graph and Table Measure Name	®</sup> Index" id="sjs-B8">S&amp;P 500&lt;sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®&lt;/sup> Index
Account Value	$ 3,425,393	$ 3,344,812	$ 3,158,863	$ 3,029,103	$ 2,739,883	$ 2,453,079	$ 2,536,096	$ 2,332,211	$ 2,169,558	$ 2,017,048	$ 2,120,588	$ 2,527,552	$ 2,649,384	$ 2,386,249	$ 2,372,441	$ 2,185,598	$ 2,058,487	$ 1,835,506	$ 1,685,042	$ 1,397,872	$ 1,738,604	$ 1,594,027	$ 1,567,407	$ 1,502,733	$ 1,322,269	$ 1,528,986	$ 1,419,529	$ 1,372,403	$ 1,382,901	$ 1,296,736	$ 1,241,129	$ 1,203,949	$ 1,135,092	$ 1,093,282	$ 1,052,731	$ 1,027,503	$ 1,013,838	$ 947,136	$ 1,012,312	$ 1,009,505	$ 1,000,000
S&P 500® Index
Account Value [Line Items]
Line Graph and Table Measure Name	®</sup> Index" id="sjs-B12">S&amp;P 500&lt;sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®&lt;/sup> Index
Account Value	$ 34,254	33,448	31,589	30,291	27,399	24,531	25,361	23,322	21,696	20,170	21,206	25,276	26,494	23,862	23,724	21,856	20,585	18,355	16,850	13,979	17,386	15,940	15,674	15,027	13,223	15,290	14,195	13,724	13,829	12,967	12,411	12,039	11,351	10,933	10,527	10,275	10,138	9,471	10,123	10,095	10,000
Russell 1000 Value Index
Account Value [Line Items]
Line Graph and Table Measure Name	®</sup> Value Index" id="sjs-B16">Russell 1000&lt;sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®&lt;/sup> Value Index
Account Value	$ 2,257,992	2,303,625	2,105,115	2,151,721	1,974,317	1,803,069	1,861,999	1,789,102	1,771,280	1,575,583	1,669,358	1,901,550	1,915,681	1,777,562	1,791,536	1,702,849	1,530,583	1,316,597	1,246,862	1,090,958	1,488,955	1,386,258	1,367,717	1,317,083	1,176,655	1,332,933	1,261,009	1,246,355	1,282,697	1,217,844	1,181,048	1,165,378	1,128,499	1,057,866	1,022,285	977,484	961,732	910,423	993,856	992,781	1,000,000
Russell 1000 Value Index
Account Value [Line Items]
Line Graph and Table Measure Name	®</sup> Value Index" id="sjs-B20">Russell 1000&lt;sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®&lt;/sup> Value Index
Account Value	$ 22,580	$ 23,036	$ 21,051	$ 21,517	$ 19,743	$ 18,031	$ 18,620	$ 17,891	$ 17,713	$ 15,756	$ 16,694	$ 19,016	$ 19,157	$ 17,776	$ 17,915	$ 17,028	$ 15,306	$ 13,166	$ 12,469	$ 10,910	$ 14,890	$ 13,863	$ 13,677	$ 13,171	$ 11,767	$ 13,329	$ 12,610	$ 12,464	$ 12,827	$ 12,178	$ 11,810	$ 11,654	$ 11,285	$ 10,579	$ 10,223	$ 9,775	$ 9,617	$ 9,104	$ 9,939	$ 9,928	$ 10,000

Shareholder Report, Average Ann

Shareholder Report, Average Annual Return (Details)	12 Months Ended	60 Months Ended	120 Months Ended
	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024
C000135035
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Institutional
Without Sales Load [Member] | C000135035
Average Annual Return [Line Items]
Average Annual Return, Percent	22.82%	11.62%	9.06%
Without Sales Load [Member] | C000012417
Average Annual Return [Line Items]
Average Annual Return, Percent	22.54%	11.41%	8.87%
S&P 500® Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	®</sup> Index" id="sjs-B14">S&amp;P 500&lt;sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®&lt;/sup> Index
Average Annual Return, Percent	25.02%	14.53%	13.10%
S&P 500® Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	®</sup> Index" id="sjs-B18">S&amp;P 500&lt;sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®&lt;/sup> Index
Average Annual Return, Percent	25.02%	14.53%	13.10%
Russell 1000 Value Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	®</sup> Value Index" id="sjs-B22">Russell 1000&lt;sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®&lt;/sup> Value Index
Average Annual Return, Percent	14.37%	8.68%	8.49%
Russell 1000 Value Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	®</sup> Value Index" id="sjs-B26">Russell 1000&lt;sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®&lt;/sup> Value Index
Average Annual Return, Percent	14.37%	8.68%	8.49%

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Dec. 31, 2024
C000135035 | Other Assets & Liabilities, Net
Holdings [Line Items]
Percent of Net Asset Value	0.10%
C000135035 | Health Care
Holdings [Line Items]
Percent of Net Asset Value	24.60%
C000135035 | Financials
Holdings [Line Items]
Percent of Net Asset Value	20.20%
C000135035 | Energy
Holdings [Line Items]
Percent of Net Asset Value	9.10%
C000135035 | Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	9%
C000135035 | Information Technology
Holdings [Line Items]
Percent of Net Asset Value	7.80%
C000135035 | Industrials
Holdings [Line Items]
Percent of Net Asset Value	6.90%
C000135035 | Utilities
Holdings [Line Items]
Percent of Net Asset Value	5.50%
C000135035 | Consumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.60%
C000135035 | Materials
Holdings [Line Items]
Percent of Net Asset Value	4.50%
C000135035 | Communication Services
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000135035 | Short-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.80%
C000135035 | Common Stock
Holdings [Line Items]
Percent of Total Investments	96.30%
C000135035 | Money Market Fund
Holdings [Line Items]
Percent of Total Investments	3.70%
C000012417 | Other Assets & Liabilities, Net
Holdings [Line Items]
Percent of Net Asset Value	0.10%
C000012417 | Health Care
Holdings [Line Items]
Percent of Net Asset Value	24.60%
C000012417 | Financials
Holdings [Line Items]
Percent of Net Asset Value	20.20%
C000012417 | Energy
Holdings [Line Items]
Percent of Net Asset Value	9.10%
C000012417 | Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	9%
C000012417 | Information Technology
Holdings [Line Items]
Percent of Net Asset Value	7.80%
C000012417 | Industrials
Holdings [Line Items]
Percent of Net Asset Value	6.90%
C000012417 | Utilities
Holdings [Line Items]
Percent of Net Asset Value	5.50%
C000012417 | Consumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.60%
C000012417 | Materials
Holdings [Line Items]
Percent of Net Asset Value	4.50%
C000012417 | Communication Services
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000012417 | Short-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.80%
C000012417 | Common Stock
Holdings [Line Items]
Percent of Total Investments	96.30%
C000012417 | Money Market Fund
Holdings [Line Items]
Percent of Total Investments	3.70%