Shareholder Report, Holdings (Details)	Jun. 30, 2026
C000085712 \| Other CountriesRomania
Holdings [Line Items]
Percent of Net Asset Value	6.30%
C000085712 \| CountryAssetShort-Term InstrumentsFR_912797VN4_0.010
Holdings [Line Items]
Percent of Net Asset Value	9.10%
C000085712 \| CountryAssetAffiliated InvestmentsFR_72202G380
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000085712 \| Financial Derivative Instruments
Holdings [Line Items]
Percent of Net Asset Value	0.60%
C000085712 \| Country Other Line
Holdings [Line Items]
Percent of Net Asset Value	(4.90%)
C000085712 \| United States
Holdings [Line Items]
Percent of Net Asset Value	64.90%
C000085712 \| Cayman Islands
Holdings [Line Items]
Percent of Net Asset Value	6.80%
C000085712 \| United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	5.00%
C000085712 \| Canada
Holdings [Line Items]
Percent of Net Asset Value	2.80%
C000085712 \| Brazil
Holdings [Line Items]
Percent of Net Asset Value	2.20%
C000085712 \| Germany
Holdings [Line Items]
Percent of Net Asset Value	1.30%
C000085712 \| Ireland
Holdings [Line Items]
Percent of Net Asset Value	1.30%
C000085712 \| Israel
Holdings [Line Items]
Percent of Net Asset Value	1.30%
C000085712 \| France
Holdings [Line Items]
Percent of Net Asset Value	1.00%
C000085710 \| Other CountriesRomania
Holdings [Line Items]
Percent of Net Asset Value	6.30%
C000085710 \| CountryAssetShort-Term InstrumentsFR_912797VN4_0.010
Holdings [Line Items]
Percent of Net Asset Value	9.10%
C000085710 \| CountryAssetAffiliated InvestmentsFR_72202G380
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000085710 \| Financial Derivative Instruments
Holdings [Line Items]
Percent of Net Asset Value	0.60%
C000085710 \| Country Other Line
Holdings [Line Items]
Percent of Net Asset Value	(4.90%)
C000085710 \| United States
Holdings [Line Items]
Percent of Net Asset Value	64.90%
C000085710 \| Cayman Islands
Holdings [Line Items]
Percent of Net Asset Value	6.80%
C000085710 \| United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	5.00%
C000085710 \| Canada
Holdings [Line Items]
Percent of Net Asset Value	2.80%
C000085710 \| Brazil
Holdings [Line Items]
Percent of Net Asset Value	2.20%
C000085710 \| Germany
Holdings [Line Items]
Percent of Net Asset Value	1.30%
C000085710 \| Ireland
Holdings [Line Items]
Percent of Net Asset Value	1.30%
C000085710 \| Israel
Holdings [Line Items]
Percent of Net Asset Value	1.30%
C000085710 \| France
Holdings [Line Items]
Percent of Net Asset Value	1.00%