Shareholder Report, Average Annual Return (Details)

6 Months Ended

12 Months Ended

60 Months Ended

120 Months Ended

Jun. 30, 2026

Jun. 30, 2026

Jun. 30, 2026

Jun. 30, 2026

C000009530 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Opportunity Fund (Class Y)

Average Annual Return, Percent

24.58%

10.42%

13.14%

C000009529 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Opportunity Fund (Class C) — With CDSC

Average Annual Return, Percent

^[1],[2]

22.26%

9.26%

12.15%

C000009527 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Opportunity Fund (Class A) — With sales charge

Average Annual Return, Percent

^[3]

18.37%

9.09%

12.33%

C000009531 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Government Bond Fund (Class A) — With sales charge

Average Annual Return, Percent

^[4]

(1.64%)

0.48%

0.62%

C000009533 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Government Bond Fund (Class C) — With CDSC

Average Annual Return, Percent

^[5],[6]

1.50%

0.70%

0.50%

C000009534 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Government Bond Fund (Class Y)

Average Annual Return, Percent

3.52%

1.68%

1.36%

C000009539 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Financial Fund (Class A) — With sales charge

Average Annual Return, Percent

^[7]

8.27%

11.81%

12.54%

C000009541 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Financial Fund (Class C) — With CDSC

Average Annual Return, Percent

^[8],[9]

11.78%

12.00%

12.38%

C000009542 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Financial Fund (Class Y)

Average Annual Return, Percent

13.96%

13.16%

13.35%

C000009546 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Balanced Fund (Class Y)

Average Annual Return, Percent

23.45%

11.42%

11.73%

C000009545 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Balanced Fund (Class C) — With CDSC

Average Annual Return, Percent

^[10],[11]

21.14%

10.23%

10.70%

C000009543 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Balanced Fund (Class A) — With sales charge

Average Annual Return, Percent

^[12]

17.23%

10.01%

10.84%

C000009547 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Real Estate Fund (Class A) — With sales charge

Average Annual Return, Percent

^[13]

2.77%

0.03%

3.48%

C000009549 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Real Estate Fund (Class C) — With CDSC

Average Annual Return, Percent

^[14],[15]

6.08%

0.22%

3.30%

C000009550 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Real Estate Fund (Class Y)

Average Annual Return, Percent

8.16%

1.26%

4.23%

Without Sales Load [Member] | C000009529 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Opportunity Fund (Class C) — Without CDSC

Average Annual Return, Percent

^[1]

23.26%

9.26%

12.15%

Without Sales Load [Member] | C000009527 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Opportunity Fund (Class A) — Without sales charge

Average Annual Return, Percent

24.28%

10.15%

12.87%

Without Sales Load [Member] | C000009531 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Government Bond Fund (Class A) — Without sales charge

Average Annual Return, Percent

3.27%

1.46%

1.11%

Without Sales Load [Member] | C000009533 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Government Bond Fund (Class C) — Without CDSC

Average Annual Return, Percent

^[5]

2.50%

0.70%

0.50%

Without Sales Load [Member] | C000009539 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Financial Fund (Class A) — Without sales charge

Average Annual Return, Percent

13.67%

12.90%

13.08%

Without Sales Load [Member] | C000009541 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Financial Fund (Class C) — Without CDSC

Average Annual Return, Percent

^[8]

12.78%

12.00%

12.38%

Without Sales Load [Member] | C000009545 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Balanced Fund (Class C) — Without CDSC

Average Annual Return, Percent

^[10]

22.14%

10.23%

10.70%

Without Sales Load [Member] | C000009543 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Balanced Fund (Class A) — Without sales charge

Average Annual Return, Percent

23.08%

11.08%

11.38%

Without Sales Load [Member] | C000009547 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Real Estate Fund (Class A) — Without sales charge

Average Annual Return, Percent

7.89%

1.00%

3.99%

Without Sales Load [Member] | C000009549 [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Davis Real Estate Fund (Class C) — Without CDSC

Average Annual Return, Percent

^[14]

7.08%

0.22%

3.30%

S And P 1500 Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

S&P 1500 Index

Average Annual Return, Percent

22.87%

13.00%

15.17%

Bloomberg U S Aggregate Bond Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Bloomberg U.S. Aggregate Bond Index

Average Annual Return, Percent

3.79%

0.08%

1.54%

Standard & Poor's 500 Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

S&P 500 Index

Average Annual Return, Percent

22.32%

13.40%

15.50%

Bloomberg U S Government 1 3 Year Bond Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Bloomberg U.S. Government 1-3 Year Bond Index

Average Annual Return, Percent

2.92%

1.91%

1.76%

S And P 500 Financials Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

S&P 500 Financials Index

Average Annual Return, Percent

4.05%

9.85%

13.39%

Bloomberg U S Aggregate Bond C000009546 Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Bloomberg U.S. Aggregate Bond Index

Average Annual Return, Percent

3.79%

0.08%

1.54%

Bloomberg U S Aggregate Bond C000009545 Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Bloomberg U.S. Aggregate Bond Index

Average Annual Return, Percent

3.79%

0.08%

1.54%

Bloomberg U S Aggregate Bond C000009543 Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Bloomberg U.S. Aggregate Bond Index

Average Annual Return, Percent

3.79%

0.08%

1.54%

Wilshire U S Real Estate Securities Index [Member]

Average Annual Return [Line Items]

Line Graph and Table Measure Name

Wilshire U.S. Real Estate Securities Index

Average Annual Return, Percent

14.27%

5.17%

5.81%

[1]	Because Class C shares automatically convert to Class A shares after 8 years, the “10-Year” returns for Class C reflect Class A performance for the period after conversion.
[2]	Includes any applicable contingent deferred sales charge (“CDSC”).
[3]	Reflects 4.75% front-end sales charge.
[4]	Reflects 4.75% front-end sales charge.
[5]	Because Class C shares automatically convert to Class A shares after 8 years, the “10-Year” returns for Class C reflect Class A performance for the period after conversion.
[6]	Includes any applicable contingent deferred sales charge (“CDSC”).
[7]	Reflects 4.75% front-end sales charge.
[8]	Because Class C shares automatically convert to Class A shares after 8 years, the “10-Year” returns for Class C reflect Class A performance for the period after conversion.
[9]	Includes any applicable contingent deferred sales charge (“CDSC”).
[10]	Because Class C shares automatically convert to Class A shares after 8 years, the “10-Year” returns for Class C reflect Class A performance for the period after conversion.
[11]	Includes any applicable contingent deferred sales charge (“CDSC”).
[12]	Reflects 4.75% front-end sales charge.
[13]	Reflects 4.75% front-end sales charge.
[14]	Because Class C shares automatically convert to Class A shares after 8 years, the “10-Year” returns for Class C reflect Class A performance for the period after conversion.
[15]	Includes any applicable contingent deferred sales charge (“CDSC”).