v3.26.1
Shareholder Report
6 Months Ended
Jun. 30, 2026
USD ($)
shares
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name ALPS VARIABLE INVESTMENT TRUST
Entity Central Index Key 0001382990
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Morningstar Conservative ETF Asset Allocation Portfolio | Class I  
Shareholder Report [Line Items]  
Fund Name Morningstar Conservative ETF Asset Allocation Portfolio
Class Name Class I
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Conservative ETF Asset Allocation Portfolio (the "Portfolio") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/cetfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/cetfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class I $27 0.53%*
Expenses Paid, Amount $ 27
Expense Ratio, Percent 0.53%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Conservative ETF Asset Allocation Portfolio - Class I - NAV 7.60% 2.73% 3.60%
Bloomberg US Aggregate Bond Index* 3.79% 0.08% 1.54%
Conservative Blended Benchmark-1 (20% Equity)(a) 7.20% 2.40% 3.97%
Blended Secondary Benchmark(b) 7.40% 3.02% 4.44%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 30,670,333
Holdings Count | shares 22
Advisory Fees Paid, Amount $ 53,697
Investment Company, Portfolio Turnover 64.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $30,670,333
Number of Portfolio Holdings 22
Portfolio Turnover Rate 64%
Total Advisory Fees Paid $53,697
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Conservative ETF Asset Allocation Portfolio | Class II  
Shareholder Report [Line Items]  
Fund Name Morningstar Conservative ETF Asset Allocation Portfolio
Class Name Class II
Trading Symbol CETFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Conservative ETF Asset Allocation Portfolio (the "Portfolio" or "CETFX") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/cetfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/cetfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class II $39 0.78%*
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.78%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Conservative ETF Asset Allocation Portfolio - Class II - NAV 7.31% 2.47% 3.35%
Bloomberg US Aggregate Bond Index* 3.79% 0.08% 1.54%
Conservative Blended Benchmark-1 (20% Equity)(a) 7.20% 2.40% 3.97%
Blended Secondary Benchmark(b) 7.40% 3.02% 4.44%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 30,670,333
Holdings Count | shares 22
Advisory Fees Paid, Amount $ 53,697
Investment Company, Portfolio Turnover 64.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $30,670,333
Number of Portfolio Holdings 22
Portfolio Turnover Rate 64%
Total Advisory Fees Paid $53,697
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Income and Growth ETF Asset Allocation Portfolio | Class I  
Shareholder Report [Line Items]  
Fund Name Morningstar Income and Growth ETF Asset Allocation Portfolio
Class Name Class I
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Income and Growth ETF Asset Allocation Portfolio (the "Portfolio") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/ietfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/ietfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class I $27 0.53%*
Expenses Paid, Amount $ 27
Expense Ratio, Percent 0.53%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class I - NAV 12.06% 4.81% 5.82%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Bloomberg US Aggregate Bond Index* 3.79% 0.08% 1.54%
Income & Growth Blended Benchmark-1 (40% Equity)(a) 11.32% 4.55% 6.39%
Blended Secondary Benchmark(b) 11.05% 5.63% 7.23%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 53,431,877
Holdings Count | shares 22
Advisory Fees Paid, Amount $ 108,781
Investment Company, Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $53,431,877
Number of Portfolio Holdings 22
Portfolio Turnover Rate 43%
Total Advisory Fees Paid $108,781
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Income and Growth ETF Asset Allocation Portfolio | Class II  
Shareholder Report [Line Items]  
Fund Name Morningstar Income and Growth ETF Asset Allocation Portfolio
Class Name Class II
Trading Symbol IETFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Income and Growth ETF Asset Allocation Portfolio (the "Portfolio" or "IETFX") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/ietfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/ietfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class II $40 0.78%*
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.78%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Income and Growth ETF Asset Allocation Portfolio - Class II - NAV 11.77% 4.54% 5.56%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Bloomberg US Aggregate Bond Index* 3.79% 0.08% 1.54%
Income & Growth Blended Benchmark-1 (40% Equity)(a) 11.32% 4.55% 6.39%
Blended Secondary Benchmark(b) 11.05% 5.63% 7.23%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 53,431,877
Holdings Count | shares 22
Advisory Fees Paid, Amount $ 108,781
Investment Company, Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $53,431,877
Number of Portfolio Holdings 22
Portfolio Turnover Rate 43%
Total Advisory Fees Paid $108,781
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Balanced ETF Asset Allocation Portfolio | Class I  
Shareholder Report [Line Items]  
Fund Name Morningstar Balanced ETF Asset Allocation Portfolio
Class Name Class I
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Balanced ETF Asset Allocation Portfolio (the "Portfolio") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/betfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/betfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class I $26 0.51%*
Expenses Paid, Amount $ 26
Expense Ratio, Percent 0.51%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Balanced ETF Asset Allocation Portfolio - Class I - NAV 16.59% 6.83% 7.85%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Bloomberg US Aggregate Bond Index* 3.79% 0.08% 1.54%
Balanced Blended Benchmark-1 (60% Equity)(a) 15.53% 6.75% 8.81%
Blended Secondary Benchmark(b) 14.76% 8.18% 10.00%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 182,696,192
Holdings Count | shares 19
Advisory Fees Paid, Amount $ 389,975
Investment Company, Portfolio Turnover 41.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $182,696,192
Number of Portfolio Holdings 19
Portfolio Turnover Rate 41%
Total Advisory Fees Paid $389,975
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Balanced ETF Asset Allocation Portfolio | Class II  
Shareholder Report [Line Items]  
Fund Name Morningstar Balanced ETF Asset Allocation Portfolio
Class Name Class II
Trading Symbol BETFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Balanced ETF Asset Allocation Portfolio (the "Portfolio" or "BETFX") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/betfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/betfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class II $39 0.76%*
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.76%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Balanced ETF Asset Allocation Portfolio - Class II - NAV 16.38% 6.56% 7.58%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Bloomberg US Aggregate Bond Index* 3.79% 0.08% 1.54%
Balanced Blended Benchmark-1 (60% Equity)(a) 15.53% 6.75% 8.81%
Blended Secondary Benchmark(b) 14.76% 8.18% 10.00%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 182,696,192
Holdings Count | shares 19
Advisory Fees Paid, Amount $ 389,975
Investment Company, Portfolio Turnover 41.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $182,696,192
Number of Portfolio Holdings 19
Portfolio Turnover Rate 41%
Total Advisory Fees Paid $389,975
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Growth ETF Asset Allocation Portfolio | Class I  
Shareholder Report [Line Items]  
Fund Name Morningstar Growth ETF Asset Allocation Portfolio
Class Name Class I
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Growth ETF Asset Allocation Portfolio (the "Portfolio") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/getfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/getfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class I $26 0.50%*
Expenses Paid, Amount $ 26
Expense Ratio, Percent 0.50%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Growth ETF Asset Allocation Portfolio - Class I - NAV 21.50% 8.95% 9.96%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Growth Blended Benchmark-1 (80% Equity)(a) 19.81% 9.05% 11.22%
Blended Secondary Benchmark(b) 18.52% 10.76% 12.76%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 322,342,208
Holdings Count | shares 14
Advisory Fees Paid, Amount $ 688,654
Investment Company, Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $322,342,208
Number of Portfolio Holdings 14
Portfolio Turnover Rate 27%
Total Advisory Fees Paid $688,654
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Growth ETF Asset Allocation Portfolio | Class II  
Shareholder Report [Line Items]  
Fund Name Morningstar Growth ETF Asset Allocation Portfolio
Class Name Class II
Trading Symbol GETFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Growth ETF Asset Allocation Portfolio (the "Portfolio" or "GETFX") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/getfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/getfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class II $39 0.75%*
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.75%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Growth ETF Asset Allocation Portfolio - Class II - NAV 21.24% 8.69% 9.68%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Growth Blended Benchmark-1 (80% Equity)(a) 19.81% 9.05% 11.22%
Blended Secondary Benchmark(b) 18.52% 10.76% 12.76%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 322,342,208
Holdings Count | shares 14
Advisory Fees Paid, Amount $ 688,654
Investment Company, Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $322,342,208
Number of Portfolio Holdings 14
Portfolio Turnover Rate 27%
Total Advisory Fees Paid $688,654
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Aggressive Growth ETF Asset Allocation Portfolio | Class I  
Shareholder Report [Line Items]  
Fund Name Morningstar Aggressive Growth ETF Asset Allocation Portfolio
Class Name Class I
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Aggressive Growth ETF Asset Allocation Portfolio (the "Portfolio") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/agtfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/agtfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class I $26 0.50%*
Expenses Paid, Amount $ 26
Expense Ratio, Percent 0.50%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class I - NAV 25.18% 10.56% 11.49%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Aggressive Growth Blended Benchmark-1 (95% Equity)(a) 23.12% 10.83% 13.06%
Blended Secondary Benchmark(b) 21.37% 12.75% 14.82%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 262,854,460
Holdings Count | shares 11
Advisory Fees Paid, Amount $ 548,833
Investment Company, Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $262,854,460
Number of Portfolio Holdings 11
Portfolio Turnover Rate 15%
Total Advisory Fees Paid $548,833
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

Morningstar Aggressive Growth ETF Asset Allocation Portfolio | Class II  
Shareholder Report [Line Items]  
Fund Name Morningstar Aggressive Growth ETF Asset Allocation Portfolio
Class Name Class II
Trading Symbol AGTFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Morningstar Aggressive Growth ETF Asset Allocation Portfolio (the "Portfolio" or "AGTFX") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/agtfx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/agtfx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class II $40 0.75%*
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.75%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
Morningstar Aggressive Growth ETF Asset Allocation Portfolio - Class II - NAV 24.90% 10.30% 11.21%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Aggressive Growth Blended Benchmark-1 (95% Equity)(a) 23.12% 10.83% 13.06%
Blended Secondary Benchmark(b) 21.37% 12.75% 14.82%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 262,854,460
Holdings Count | shares 11
Advisory Fees Paid, Amount $ 548,833
Investment Company, Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $262,854,460
Number of Portfolio Holdings 11
Portfolio Turnover Rate 15%
Total Advisory Fees Paid $548,833
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image

*

As a percentage of net assets.

Holdings are subject to change.

ALPS | Alerian Energy Infrastructure Portfolio | Class I  
Shareholder Report [Line Items]  
Fund Name ALPS | Alerian Energy Infrastructure Portfolio
Class Name Class I
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about ALPS | Alerian Energy Infrastructure Portfolio (the "Portfolio") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/alefx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/alefx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class I $53 0.95%*
Expenses Paid, Amount $ 53
Expense Ratio, Percent 0.95%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
ALPS | Alerian Energy Infrastructure Portfolio - Class I - NAV 22.75% 19.14% 10.90%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Alerian Midstream Energy Select Index 24.49% 20.88% 12.47%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 146,349,490
Holdings Count | shares 28
Advisory Fees Paid, Amount $ 513,585
Investment Company, Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $146,349,490
Number of Portfolio Holdings 28
Portfolio Turnover Rate 22%
Total Advisory Fees Paid $513,585
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image
Top Ten Holdings*
Enbridge, Inc. 8.27%
Energy Transfer LP 7.83%
Enterprise Products Partners LP 7.06%
The Williams Cos., Inc. 6.33%
DT Midstream, Inc. 5.28%
Kinder Morgan, Inc. 5.15%
Targa Resources Corp. 5.02%
Plains GP Holdings LP 4.91%
Cheniere Energy, Inc. 4.90%
ONEOK, Inc. 4.89%
Total % of Top 10 Holdings 59.64%

*

As a percentage of net assets.

Holdings are subject to change.

Largest Holdings [Text Block]
Top Ten Holdings*
Enbridge, Inc. 8.27%
Energy Transfer LP 7.83%
Enterprise Products Partners LP 7.06%
The Williams Cos., Inc. 6.33%
DT Midstream, Inc. 5.28%
Kinder Morgan, Inc. 5.15%
Targa Resources Corp. 5.02%
Plains GP Holdings LP 4.91%
Cheniere Energy, Inc. 4.90%
ONEOK, Inc. 4.89%
Total % of Top 10 Holdings 59.64%

*

As a percentage of net assets.

Holdings are subject to change.

ALPS | Alerian Energy Infrastructure Portfolio | Class III  
Shareholder Report [Line Items]  
Fund Name ALPS | Alerian Energy Infrastructure Portfolio
Class Name Class III
Trading Symbol ALEFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about ALPS | Alerian Energy Infrastructure Portfolio (the "Portfolio" or "ALEFX") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/alefx. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/alefx
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class III $72 1.30%*
Expenses Paid, Amount $ 72
Expense Ratio, Percent 1.30%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
ALPS | Alerian Energy Infrastructure Portfolio - Class III - NAV 22.37% 18.70% 10.50%
Bloomberg US 1000 Index* 22.43% 12.59% 15.29%
Alerian Midstream Energy Select Index 24.49% 20.88% 12.47%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 146,349,490
Holdings Count | shares 28
Advisory Fees Paid, Amount $ 513,585
Investment Company, Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $146,349,490
Number of Portfolio Holdings 28
Portfolio Turnover Rate 22%
Total Advisory Fees Paid $513,585
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Sector Allocation*
Af Image
Top Ten Holdings*
Enbridge, Inc. 8.27%
Energy Transfer LP 7.83%
Enterprise Products Partners LP 7.06%
The Williams Cos., Inc. 6.33%
DT Midstream, Inc. 5.28%
Kinder Morgan, Inc. 5.15%
Targa Resources Corp. 5.02%
Plains GP Holdings LP 4.91%
Cheniere Energy, Inc. 4.90%
ONEOK, Inc. 4.89%
Total % of Top 10 Holdings 59.64%

*

As a percentage of net assets.

Holdings are subject to change.

Largest Holdings [Text Block]
Top Ten Holdings*
Enbridge, Inc. 8.27%
Energy Transfer LP 7.83%
Enterprise Products Partners LP 7.06%
The Williams Cos., Inc. 6.33%
DT Midstream, Inc. 5.28%
Kinder Morgan, Inc. 5.15%
Targa Resources Corp. 5.02%
Plains GP Holdings LP 4.91%
Cheniere Energy, Inc. 4.90%
ONEOK, Inc. 4.89%
Total % of Top 10 Holdings 59.64%

*

As a percentage of net assets.

Holdings are subject to change.

ALPS Global Opportunity Portfolio | Class I  
Shareholder Report [Line Items]  
Fund Name ALPS Global Opportunity Portfolio
Class Name Class I
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about ALPS Global Opportunity Portfolio (the "Portfolio") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/avpex. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/avpex
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class I $52 1.10%*
Expenses Paid, Amount $ 52
Expense Ratio, Percent 1.10%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
ALPS Global Opportunity Portfolio - Class I - NAV -11.91% 1.72% 8.70%
Morningstar Developed Markets Index* 21.77% 10.95% 12.77%
Red Rocks Global Listed Private Equity Index -13.62% 0.53% 8.72%
Morningstar Global Markets Mid Cap Index 21.91% 7.86% 10.71%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 17,968,864
Holdings Count | shares 52
Advisory Fees Paid, Amount $ 42,833
Investment Company, Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $17,968,864
Number of Portfolio Holdings 52
Portfolio Turnover Rate 10%
Total Advisory Fees Paid $42,833
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Country Allocation*
Af Image
Top Ten Holdings*
3i Group PLC 4.39%
Berkshire Hathaway, Inc. 4.36%
KKR & Co., Inc. 4.34%
Brederode SA 4.06%
Ares Management LP 3.93%
Blackstone, Inc. 3.91%
HgCapital Trust PLC 3.90%
Apollo Global Management, Inc. 3.85%
Partners Group Holding AG 3.33%
Investor AB, B Shares Class B 2.51%
Total % of Top 10 Holdings 38.58%

*

As a percentage of net assets.

Holdings are subject to change.

Largest Holdings [Text Block]
Top Ten Holdings*
3i Group PLC 4.39%
Berkshire Hathaway, Inc. 4.36%
KKR & Co., Inc. 4.34%
Brederode SA 4.06%
Ares Management LP 3.93%
Blackstone, Inc. 3.91%
HgCapital Trust PLC 3.90%
Apollo Global Management, Inc. 3.85%
Partners Group Holding AG 3.33%
Investor AB, B Shares Class B 2.51%
Total % of Top 10 Holdings 38.58%

*

As a percentage of net assets.

Holdings are subject to change.

ALPS Global Opportunity Portfolio | Class III  
Shareholder Report [Line Items]  
Fund Name ALPS Global Opportunity Portfolio
Class Name Class III
Trading Symbol AVPEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about ALPS Global Opportunity Portfolio (the "Portfolio" or "AVPEX") for the period of January 1, 2026 to June 30, 2026 (the "Period").
Additional Information [Text Block] You can find additional information about the Portfolio at https://www.alpsfunds.com/variable-insurance-trusts/avpex. You can also request this information by contacting us at 1-866-432-2926.
Additional Information Phone Number 1-866-432-2926
Additional Information Website https://www.alpsfunds.com/variable-insurance-trusts/avpex
Expenses [Text Block]

WHAT WERE THE PORTFOLIO COSTS FOR THE PAST six months?

(based on a hypothetical $10,000 investment)
Costs of a $10,000 Investment Costs Paid as a Percentage of a $10,000 Investment
Class III $67 1.42%*
Expenses Paid, Amount $ 67
Expense Ratio, Percent 1.42%
Performance Past Does Not Indicate Future [Text] The Portfolio's past performance is not a good predictor of the Portfolio's future performance.
Line Graph [Table Text Block] Ad2 Performance Graph
Average Annual Return [Table Text Block]
Average Annual Total Returns (as of June 30, 2026)
1 Year 5 Year 10 Year
ALPS Global Opportunity Portfolio - Class III - NAV -12.13% 1.43% 8.35%
Morningstar Developed Markets Index* 21.77% 10.95% 12.77%
Red Rocks Global Listed Private Equity Index -13.62% 0.53% 8.72%
Morningstar Global Markets Mid Cap Index 21.91% 7.86% 10.71%
No Deduction of Taxes [Text Block] The chart and the Average Annual Total Returns table do not reflect the deduction of taxes that a shareholder would pay on Portfolio distributions or sale of Portfolio shares.
Net Assets $ 17,968,864
Holdings Count | shares 52
Advisory Fees Paid, Amount $ 42,833
Investment Company, Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
WHAT ARE SOME KEY PORTFOLIO STATISTICS? (as of June 30, 2026)
Net Assets $17,968,864
Number of Portfolio Holdings 52
Portfolio Turnover Rate 10%
Total Advisory Fees Paid $42,833
Holdings [Text Block]
WHAT DID THE PORTFOLIO INVEST IN?
Country Allocation*
Af Image
Top Ten Holdings*
3i Group PLC 4.39%
Berkshire Hathaway, Inc. 4.36%
KKR & Co., Inc. 4.34%
Brederode SA 4.06%
Ares Management LP 3.93%
Blackstone, Inc. 3.91%
HgCapital Trust PLC 3.90%
Apollo Global Management, Inc. 3.85%
Partners Group Holding AG 3.33%
Investor AB, B Shares Class B 2.51%
Total % of Top 10 Holdings 38.58%

*

As a percentage of net assets.

Holdings are subject to change.

Largest Holdings [Text Block]
Top Ten Holdings*
3i Group PLC 4.39%
Berkshire Hathaway, Inc. 4.36%
KKR & Co., Inc. 4.34%
Brederode SA 4.06%
Ares Management LP 3.93%
Blackstone, Inc. 3.91%
HgCapital Trust PLC 3.90%
Apollo Global Management, Inc. 3.85%
Partners Group Holding AG 3.33%
Investor AB, B Shares Class B 2.51%
Total % of Top 10 Holdings 38.58%

*

As a percentage of net assets.

Holdings are subject to change.