Shareholder Report, Average Annual Return (Details)	12 Months Ended	60 Months Ended	120 Months Ended
Shareholder Report, Average Annual Return (Details)	Jun. 30, 2026	Jun. 30, 2026	Jun. 30, 2026
C000001723 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class I Shares at NAV
Average Annual Return, Percent	18.80%	10.47%	9.11%
C000001720 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class A Shares at maximum sales charge (Offering Price)
Average Annual Return, Percent	11.73%	8.90%	8.20%
Without Sales Load [Member] \| C000001722 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class C Shares at NAV (excluding maximum sales charge)
Average Annual Return, Percent	17.64%	9.37%	8.19%
Without Sales Load [Member] \| C000001720 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class A Shares at NAV (excluding maximum sales charge)
Average Annual Return, Percent	18.54%	10.20%	8.84%
MSCI EAFE Index Net [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	MSCI EAFE® Index (Net)
Average Annual Return, Percent	20.23%	9.05%	9.66%
Lipper International Multi Cap Value Funds Classification Average [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Lipper International Multi-Cap Value Funds Classification Average
Average Annual Return, Percent	23.72%	10.60%	9.54%