v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2025
Morningstar Conservative ETF Asset Allocation Portfolio - Class I | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 15.28%
Morningstar Conservative ETF Asset Allocation Portfolio - Class I | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 68.57%
Morningstar Conservative ETF Asset Allocation Portfolio - Class I | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 5.03%
Morningstar Conservative ETF Asset Allocation Portfolio - Class I | Non-U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 9.46%
Morningstar Conservative ETF Asset Allocation Portfolio - Class I | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.65%
Morningstar Conservative ETF Asset Allocation Portfolio - Class II | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 15.28%
Morningstar Conservative ETF Asset Allocation Portfolio - Class II | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 68.57%
Morningstar Conservative ETF Asset Allocation Portfolio - Class II | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 5.03%
Morningstar Conservative ETF Asset Allocation Portfolio - Class II | Non-U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 9.46%
Morningstar Conservative ETF Asset Allocation Portfolio - Class II | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.65%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class I | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 29.11%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class I | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 51.19%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class I | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 11.06%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class I | Non-U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 6.44%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class I | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.21%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class II | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 29.11%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class II | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 51.19%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class II | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 11.06%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class II | Non-U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 6.44%
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class II | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.21%
Morningstar Balanced ETF Asset Allocation Portfolio - Class I | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 43.01%
Morningstar Balanced ETF Asset Allocation Portfolio - Class I | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 35.67%
Morningstar Balanced ETF Asset Allocation Portfolio - Class I | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 17.52%
Morningstar Balanced ETF Asset Allocation Portfolio - Class I | Non-U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 2.92%
Morningstar Balanced ETF Asset Allocation Portfolio - Class I | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.89%
Morningstar Balanced ETF Asset Allocation Portfolio - Class II | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 43.01%
Morningstar Balanced ETF Asset Allocation Portfolio - Class II | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 35.67%
Morningstar Balanced ETF Asset Allocation Portfolio - Class II | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 17.52%
Morningstar Balanced ETF Asset Allocation Portfolio - Class II | Non-U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 2.92%
Morningstar Balanced ETF Asset Allocation Portfolio - Class II | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.89%
Morningstar Growth ETF Asset Allocation Portfolio - Class I | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 55.36%
Morningstar Growth ETF Asset Allocation Portfolio - Class I | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 17.52%
Morningstar Growth ETF Asset Allocation Portfolio - Class I | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 25.18%
Morningstar Growth ETF Asset Allocation Portfolio - Class I | Non-U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 0.97%
Morningstar Growth ETF Asset Allocation Portfolio - Class I | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.97%
Morningstar Growth ETF Asset Allocation Portfolio - Class II | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 55.36%
Morningstar Growth ETF Asset Allocation Portfolio - Class II | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 17.52%
Morningstar Growth ETF Asset Allocation Portfolio - Class II | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 25.18%
Morningstar Growth ETF Asset Allocation Portfolio - Class II | Non-U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 0.97%
Morningstar Growth ETF Asset Allocation Portfolio - Class II | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.97%
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class I | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 64.63%
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class I | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 3.89%
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class I | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 30.61%
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class I | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.87%
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class II | U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 64.63%
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class II | U.S. Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 3.89%
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class II | Non-U.S. Equity  
Holdings [Line Items]  
Percent of Net Asset Value 30.61%
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class II | Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.87%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Canadian Energy Infrastructure Companies  
Holdings [Line Items]  
Percent of Net Asset Value 28.25%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | U.S. Energy Infrastructure Companies  
Holdings [Line Items]  
Percent of Net Asset Value 28.08%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | U.S. Energy Infrastructure MLPs  
Holdings [Line Items]  
Percent of Net Asset Value 27.96%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | U.S. General Partners  
Holdings [Line Items]  
Percent of Net Asset Value 15.78%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Cash, Cash Equivalents,& Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value (0.07%)
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Energy Transfer LP  
Holdings [Line Items]  
Percent of Net Asset Value 8.83%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Enbridge, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 7.84%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Enterprise Products Partners LP  
Holdings [Line Items]  
Percent of Net Asset Value 7.12%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | The Williams Cos., Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.48%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Kinder Morgan, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Cheniere Energy, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.17%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | DT Midstream, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.16%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Keyera Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.99%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Plains GP Holdings LP  
Holdings [Line Items]  
Percent of Net Asset Value 4.97%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | MPLX LP  
Holdings [Line Items]  
Percent of Net Asset Value 4.95%
ALPS/Alerian Energy Infrastructure Portfolio - Class I | Total % of Top 10 Holdings  
Holdings [Line Items]  
Percent of Net Asset Value 60.81%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Canadian Energy Infrastructure Companies  
Holdings [Line Items]  
Percent of Net Asset Value 28.25%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | U.S. Energy Infrastructure Companies  
Holdings [Line Items]  
Percent of Net Asset Value 28.08%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | U.S. Energy Infrastructure MLPs  
Holdings [Line Items]  
Percent of Net Asset Value 27.96%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | U.S. General Partners  
Holdings [Line Items]  
Percent of Net Asset Value 15.78%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Cash, Cash Equivalents,& Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value (0.07%)
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Energy Transfer LP  
Holdings [Line Items]  
Percent of Net Asset Value 8.83%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Enbridge, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 7.84%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Enterprise Products Partners LP  
Holdings [Line Items]  
Percent of Net Asset Value 7.12%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | The Williams Cos., Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.48%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Kinder Morgan, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Cheniere Energy, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.17%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | DT Midstream, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.16%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Keyera Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.99%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Plains GP Holdings LP  
Holdings [Line Items]  
Percent of Net Asset Value 4.97%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | MPLX LP  
Holdings [Line Items]  
Percent of Net Asset Value 4.95%
ALPS/Alerian Energy Infrastructure Portfolio - Class III | Total % of Top 10 Holdings  
Holdings [Line Items]  
Percent of Net Asset Value 60.81%
ALPS Global Opportunity Portfolio - Class I | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 46.68%
ALPS Global Opportunity Portfolio - Class I | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 19.68%
ALPS Global Opportunity Portfolio - Class I | LUXEMBOURG  
Holdings [Line Items]  
Percent of Net Asset Value 5.71%
ALPS Global Opportunity Portfolio - Class I | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 5.24%
ALPS Global Opportunity Portfolio - Class I | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 4.41%
ALPS Global Opportunity Portfolio - Class I | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
ALPS Global Opportunity Portfolio - Class I | GUERNSEY  
Holdings [Line Items]  
Percent of Net Asset Value 3.49%
ALPS Global Opportunity Portfolio - Class I | BERMUDA  
Holdings [Line Items]  
Percent of Net Asset Value 1.98%
ALPS Global Opportunity Portfolio - Class I | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 1.97%
ALPS Global Opportunity Portfolio - Class I | AUSTRALIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.79%
ALPS Global Opportunity Portfolio - Class I | BELGIUM  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
ALPS Global Opportunity Portfolio - Class I | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 0.91%
ALPS Global Opportunity Portfolio - Class I | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 0.84%
ALPS Global Opportunity Portfolio - Class I | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 0.56%
ALPS Global Opportunity Portfolio - Class I | Cash, Cash Equivalents,& Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.54%
ALPS Global Opportunity Portfolio - Class I | Total % of Top 10 Holdings  
Holdings [Line Items]  
Percent of Net Asset Value 44.02%
ALPS Global Opportunity Portfolio - Class I | 3i Group PLC  
Holdings [Line Items]  
Percent of Net Asset Value 6.24%
ALPS Global Opportunity Portfolio - Class I | KKR & Co., Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.13%
ALPS Global Opportunity Portfolio - Class I | HgCapital Trust PLC  
Holdings [Line Items]  
Percent of Net Asset Value 4.94%
ALPS Global Opportunity Portfolio - Class I | Ares Management LP  
Holdings [Line Items]  
Percent of Net Asset Value 4.82%
ALPS Global Opportunity Portfolio - Class I | Berkshire Hathaway, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.38%
ALPS Global Opportunity Portfolio - Class I | Constellation Software, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
ALPS Global Opportunity Portfolio - Class I | Brederode SA  
Holdings [Line Items]  
Percent of Net Asset Value 3.97%
ALPS Global Opportunity Portfolio - Class I | Apollo Global Management, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.58%
ALPS Global Opportunity Portfolio - Class I | Partners Group Holding AG  
Holdings [Line Items]  
Percent of Net Asset Value 3.44%
ALPS Global Opportunity Portfolio - Class I | Blackstone, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.42%
ALPS Global Opportunity Portfolio - Class III | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 46.68%
ALPS Global Opportunity Portfolio - Class III | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 19.68%
ALPS Global Opportunity Portfolio - Class III | LUXEMBOURG  
Holdings [Line Items]  
Percent of Net Asset Value 5.71%
ALPS Global Opportunity Portfolio - Class III | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 5.24%
ALPS Global Opportunity Portfolio - Class III | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 4.41%
ALPS Global Opportunity Portfolio - Class III | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
ALPS Global Opportunity Portfolio - Class III | GUERNSEY  
Holdings [Line Items]  
Percent of Net Asset Value 3.49%
ALPS Global Opportunity Portfolio - Class III | BERMUDA  
Holdings [Line Items]  
Percent of Net Asset Value 1.98%
ALPS Global Opportunity Portfolio - Class III | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 1.97%
ALPS Global Opportunity Portfolio - Class III | AUSTRALIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.79%
ALPS Global Opportunity Portfolio - Class III | BELGIUM  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
ALPS Global Opportunity Portfolio - Class III | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 0.91%
ALPS Global Opportunity Portfolio - Class III | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 0.84%
ALPS Global Opportunity Portfolio - Class III | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 0.56%
ALPS Global Opportunity Portfolio - Class III | Cash, Cash Equivalents,& Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.54%
ALPS Global Opportunity Portfolio - Class III | Total % of Top 10 Holdings  
Holdings [Line Items]  
Percent of Net Asset Value 44.02%
ALPS Global Opportunity Portfolio - Class III | 3i Group PLC  
Holdings [Line Items]  
Percent of Net Asset Value 6.24%
ALPS Global Opportunity Portfolio - Class III | KKR & Co., Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.13%
ALPS Global Opportunity Portfolio - Class III | HgCapital Trust PLC  
Holdings [Line Items]  
Percent of Net Asset Value 4.94%
ALPS Global Opportunity Portfolio - Class III | Ares Management LP  
Holdings [Line Items]  
Percent of Net Asset Value 4.82%
ALPS Global Opportunity Portfolio - Class III | Berkshire Hathaway, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.38%
ALPS Global Opportunity Portfolio - Class III | Constellation Software, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
ALPS Global Opportunity Portfolio - Class III | Brederode SA  
Holdings [Line Items]  
Percent of Net Asset Value 3.97%
ALPS Global Opportunity Portfolio - Class III | Apollo Global Management, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.58%
ALPS Global Opportunity Portfolio - Class III | Partners Group Holding AG  
Holdings [Line Items]  
Percent of Net Asset Value 3.44%
ALPS Global Opportunity Portfolio - Class III | Blackstone, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.42%