v3.26.3
Shareholder Report, Average Annual Return (Details)
12 Months Ended 60 Months Ended 82 Months Ended 84 Months Ended 99 Months Ended 120 Months Ended
Aug. 31, 2026
Aug. 31, 2026
Aug. 31, 2026
Aug. 31, 2026
Aug. 31, 2026
Aug. 31, 2026
C000032838            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Balanced Fund Class A (including sales charges) ($23,649)          
Average Annual Return, Percent 5.70% 6.16%       8.99%
C000032840            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Balanced Fund Class C (including sales charges) ($23,277)          
Average Annual Return, Percent 10.31% 6.62%       8.82%
C000032842            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Balanced Fund Institutional Class ($25,731)          
C000094667            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Balanced Fund Institutional 2 Class ($25,835)          
C000122660            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Balanced Fund Institutional 3 Class ($25,962)          
C000094665            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Balanced Fund Class R ($24,468)          
C000253713            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Balanced Fund Class S ($25,730)          
C000032888            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Contrarian Core Fund Class A (including sales charges) ($36,652)          
Average Annual Return, Percent 11.51% 10.82%       13.87%
C000032890            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Contrarian Core Fund Class C (including sales charges) ($36,079)          
Average Annual Return, Percent 16.44% 11.31%       13.69%
C000032893            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Contrarian Core Fund Institutional Class ($39,881)          
C000122667            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Contrarian Core Fund Institutional 2 Class ($40,201)          
C000122668            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Contrarian Core Fund Institutional 3 Class ($40,397)          
C000094681            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Contrarian Core Fund Class R ($37,923)          
C000253719            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Contrarian Core Fund Class S ($39,890)          
C000061809            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Emerging Markets Fund Class A (including sales charges) ($21,613)          
Average Annual Return, Percent 37.02% 2.27%       8.01%
C000061810            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Emerging Markets Fund Class C (including sales charges) ($21,280)          
Average Annual Return, Percent 43.33% 2.72%       7.84%
C000061811            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Emerging Markets Fund Institutional Class ($23,511)          
C000121798            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Emerging Markets Fund Institutional 2 Class ($23,798)          
C000122684            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Emerging Markets Fund Institutional 3 Class ($23,881)          
C000253721            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Emerging Markets Fund Class S ($23,511)          
C000032877            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Global Technology Growth Fund Class A (including sales charges) ($75,099)          
Average Annual Return, Percent 28.51% 15.48%       22.34%
C000032879            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Global Technology Growth Fund Class C (including sales charges) ($73,902)          
Average Annual Return, Percent 34.33% 15.99%       22.14%
C000032881            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Global Technology Growth Fund Institutional Class ($81,680)          
C000122665            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Global Technology Growth Fund Institutional 2 Class ($82,179)          
C000169173            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Global Technology Growth Fund Institutional 3 Class ($82,606)          
C000253718            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Global Technology Growth Fund Class S ($81,680)          
C000032843            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Greater China Fund Class A (including sales charges) ($11,995)          
Average Annual Return, Percent (14.14%) (9.21%)       1.84%
C000032846            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Greater China Fund Institutional Class ($13,036)          
C000179749            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Greater China Fund Institutional 3 Class ($13,202)          
C000032872            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia International Dividend Income Fund Class A (including sales charges) ($23,288)          
Average Annual Return, Percent 22.93% 9.01%       8.82%
C000032876            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia International Dividend Income Fund Institutional Class ($25,333)          
C000138362            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia International Dividend Income Fund Institutional 2 Class ($25,686)          
C000078988            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia International Dividend Income Fund Institutional 3 Class ($25,807)          
C000253717            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia International Dividend Income Fund Class S ($25,333)          
C000032847            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Select Mid Cap Growth Fund Class A (including sales charges) ($32,171)          
Average Annual Return, Percent 6.77% 5.11%       12.39%
C000032849            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Select Mid Cap Growth Fund Class C (including sales charges) ($31,660)          
Average Annual Return, Percent 11.51% 5.57%       12.22%
C000032854            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Select Mid Cap Growth Fund Institutional Class ($35,010)          
C000094669            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Select Mid Cap Growth Fund Institutional 2 Class ($35,210)          
C000078986            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Select Mid Cap Growth Fund Institutional 3 Class ($35,387)          
C000253714            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Select Mid Cap Growth Fund Class S ($35,006)          
C000032868            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Small Cap Growth Fund Class A (including sales charges) ($40,807)          
Average Annual Return, Percent 20.06% 3.43%       15.10%
C000032870            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Small Cap Growth Fund Class C (including sales charges) ($40,133)          
Average Annual Return, Percent 25.39% 3.88%       14.91%
C000032871            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Small Cap Growth Fund Institutional Class ($44,371)          
C000121792            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Small Cap Growth Fund Institutional 2 Class ($44,814)          
C000078987            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Small Cap Growth Fund Institutional 3 Class ($45,052)          
C000094677            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Small Cap Growth Fund Class R ($42,204)          
C000253716            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Small Cap Growth Fund Class S ($44,371)          
C000029358            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Strategic Income Fund Class A (including sales charges) ($13,188)          
Average Annual Return, Percent (2.24%) 0.85%       2.81%
C000029360            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Strategic Income Fund Class C (including sales charges) ($12,851)          
Average Annual Return, Percent 0.89% 1.08%       2.54%
C000029362            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Strategic Income Fund Institutional Class ($14,195)          
C000094663            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Strategic Income Fund Institutional 2 Class ($14,266)          
C000129839            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Strategic Income Fund Institutional 3 Class ($14,312)          
C000094661            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Strategic Income Fund Class R ($13,498)          
C000253710            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Columbia Strategic Income Fund Class S ($13,910)          
C000179757            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Multi-Manager Alternative Strategies Fund Institutional Class ($12,664)          
C000199958            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Multi-Manager International Equity Strategies Fund Institutional Class ($20,825)          
C000179756            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Multi-Manager Small Cap Equity Strategies Fund Institutional Class ($24,049)          
C000179755            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Multi-Manager Total Return Bond Strategies Fund Institutional Class ($11,729)          
C000215205            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Multisector Bond SMA Completion Portfolio ($15,054)          
C000214277            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Overseas SMA Completion Portfolio ($22,439)          
Without Sales Load [Member] | C000032838            
Average Annual Return [Line Items]            
Average Annual Return, Percent 12.15% 7.42%       9.64%
Without Sales Load [Member] | C000032840            
Average Annual Return [Line Items]            
Average Annual Return, Percent 11.31% 6.62%       8.82%
Without Sales Load [Member] | C000032842            
Average Annual Return [Line Items]            
Average Annual Return, Percent 12.44% 7.70%       9.91%
Without Sales Load [Member] | C000094667            
Average Annual Return [Line Items]            
Average Annual Return, Percent 12.46% 7.73%       9.96%
Without Sales Load [Member] | C000122660            
Average Annual Return [Line Items]            
Average Annual Return, Percent 12.52% 7.78%       10.01%
Without Sales Load [Member] | C000094665            
Average Annual Return [Line Items]            
Average Annual Return, Percent 11.85% 7.16%       9.36%
Without Sales Load [Member] | C000253713            
Average Annual Return [Line Items]            
Average Annual Return, Percent 12.44% 7.69%       9.91%
Without Sales Load [Member] | C000032888            
Average Annual Return [Line Items]            
Average Annual Return, Percent 18.32% 12.15%       14.55%
Without Sales Load [Member] | C000032890            
Average Annual Return [Line Items]            
Average Annual Return, Percent 17.44% 11.31%       13.69%
Without Sales Load [Member] | C000032893            
Average Annual Return [Line Items]            
Average Annual Return, Percent 18.62% 12.43%       14.84%
Without Sales Load [Member] | C000122667            
Average Annual Return [Line Items]            
Average Annual Return, Percent 18.73% 12.51%       14.93%
Without Sales Load [Member] | C000122668            
Average Annual Return [Line Items]            
Average Annual Return, Percent 18.76% 12.56%       14.98%
Without Sales Load [Member] | C000094681            
Average Annual Return [Line Items]            
Average Annual Return, Percent 18.03% 11.87%       14.26%
Without Sales Load [Member] | C000253719            
Average Annual Return [Line Items]            
Average Annual Return, Percent 18.64% 12.43%       14.84%
Without Sales Load [Member] | C000061809            
Average Annual Return [Line Items]            
Average Annual Return, Percent 45.42% 3.49%       8.65%
Without Sales Load [Member] | C000061810            
Average Annual Return [Line Items]            
Average Annual Return, Percent 44.33% 2.72%       7.84%
Without Sales Load [Member] | C000061811            
Average Annual Return [Line Items]            
Average Annual Return, Percent 45.86% 3.74%       8.92%
Without Sales Load [Member] | C000121798            
Average Annual Return [Line Items]            
Average Annual Return, Percent 45.98% 3.85%       9.06%
Without Sales Load [Member] | C000122684            
Average Annual Return [Line Items]            
Average Annual Return, Percent 45.98% 3.89%       9.10%
Without Sales Load [Member] | C000253721            
Average Annual Return [Line Items]            
Average Annual Return, Percent 45.86% 3.74%       8.92%
Without Sales Load [Member] | C000032877            
Average Annual Return [Line Items]            
Average Annual Return, Percent 36.35% 16.86%       23.06%
Without Sales Load [Member] | C000032879            
Average Annual Return [Line Items]            
Average Annual Return, Percent 35.33% 15.99%       22.14%
Without Sales Load [Member] | C000032881            
Average Annual Return [Line Items]            
Average Annual Return, Percent 36.68% 17.15%       23.37%
Without Sales Load [Member] | C000122665            
Average Annual Return [Line Items]            
Average Annual Return, Percent 36.76% 17.21%       23.45%
Without Sales Load [Member] | C000169173            
Average Annual Return [Line Items]            
Average Annual Return, Percent 36.82% 17.27%       23.51%
Without Sales Load [Member] | C000253718            
Average Annual Return [Line Items]            
Average Annual Return, Percent 36.68% 17.15%       23.37%
Without Sales Load [Member] | C000032843            
Average Annual Return [Line Items]            
Average Annual Return, Percent (8.90%) (8.13%)       2.44%
Without Sales Load [Member] | C000032846            
Average Annual Return [Line Items]            
Average Annual Return, Percent (8.67%) (7.92%)       2.69%
Without Sales Load [Member] | C000179749            
Average Annual Return [Line Items]            
Average Annual Return, Percent (8.52%) (7.77%)       2.82%
Without Sales Load [Member] | C000032872            
Average Annual Return [Line Items]            
Average Annual Return, Percent 30.43% 10.31%       9.47%
Without Sales Load [Member] | C000032876            
Average Annual Return [Line Items]            
Average Annual Return, Percent 30.79% 10.59%       9.74%
Without Sales Load [Member] | C000138362            
Average Annual Return [Line Items]            
Average Annual Return, Percent 30.94% 10.74%       9.89%
Without Sales Load [Member] | C000078988            
Average Annual Return [Line Items]            
Average Annual Return, Percent 30.97% 10.79%       9.94%
Without Sales Load [Member] | C000253717            
Average Annual Return [Line Items]            
Average Annual Return, Percent 30.79% 10.59%       9.74%
Without Sales Load [Member] | C000032847            
Average Annual Return [Line Items]            
Average Annual Return, Percent 13.28% 6.36%       13.06%
Without Sales Load [Member] | C000032849            
Average Annual Return [Line Items]            
Average Annual Return, Percent 12.42% 5.57%       12.22%
Without Sales Load [Member] | C000032854            
Average Annual Return [Line Items]            
Average Annual Return, Percent 13.61% 6.63%       13.35%
Without Sales Load [Member] | C000094669            
Average Annual Return [Line Items]            
Average Annual Return, Percent 13.62% 6.68%       13.41%
Without Sales Load [Member] | C000078986            
Average Annual Return [Line Items]            
Average Annual Return, Percent 13.68% 6.73%       13.47%
Without Sales Load [Member] | C000253714            
Average Annual Return [Line Items]            
Average Annual Return, Percent 13.60% 6.63%       13.35%
Without Sales Load [Member] | C000032868            
Average Annual Return [Line Items]            
Average Annual Return, Percent 27.38% 4.66%       15.78%
Without Sales Load [Member] | C000032870            
Average Annual Return [Line Items]            
Average Annual Return, Percent 26.39% 3.88%       14.91%
Without Sales Load [Member] | C000032871            
Average Annual Return [Line Items]            
Average Annual Return, Percent 27.69% 4.92%       16.07%
Without Sales Load [Member] | C000121792            
Average Annual Return [Line Items]            
Average Annual Return, Percent 27.77% 5.02%       16.18%
Without Sales Load [Member] | C000078987            
Average Annual Return [Line Items]            
Average Annual Return, Percent 27.84% 5.07%       16.24%
Without Sales Load [Member] | C000094677            
Average Annual Return [Line Items]            
Average Annual Return, Percent 27.05% 4.40%       15.49%
Without Sales Load [Member] | C000253716            
Average Annual Return [Line Items]            
Average Annual Return, Percent 27.69% 4.92%       16.07%
Without Sales Load [Member] | C000029358            
Average Annual Return [Line Items]            
Average Annual Return, Percent 2.62% 1.84%       3.31%
Without Sales Load [Member] | C000029360            
Average Annual Return [Line Items]            
Average Annual Return, Percent 1.87% 1.08%       2.54%
Without Sales Load [Member] | C000029362            
Average Annual Return [Line Items]            
Average Annual Return, Percent 2.89% 2.10%       3.57%
Without Sales Load [Member] | C000094663            
Average Annual Return [Line Items]            
Average Annual Return, Percent 2.92% 2.13%       3.62%
Without Sales Load [Member] | C000129839            
Average Annual Return [Line Items]            
Average Annual Return, Percent 2.94% 2.18%       3.65%
Without Sales Load [Member] | C000094661            
Average Annual Return [Line Items]            
Average Annual Return, Percent 2.35% 1.58%       3.05%
Without Sales Load [Member] | C000253710            
Average Annual Return [Line Items]            
Average Annual Return, Percent 2.89% 1.93%       3.36%
Without Sales Load [Member] | C000179757            
Average Annual Return [Line Items]            
Average Annual Return, Percent 8.75% 3.34%       2.39%
Without Sales Load [Member] | C000199958            
Average Annual Return [Line Items]            
Average Annual Return, Percent 22.69% 9.45%     9.25%  
Without Sales Load [Member] | C000179756            
Average Annual Return [Line Items]            
Average Annual Return, Percent 17.03% 4.05%       9.17%
Without Sales Load [Member] | C000179755            
Average Annual Return [Line Items]            
Average Annual Return, Percent 1.99% (0.20%)       1.61%
Without Sales Load [Member] | C000215205            
Average Annual Return [Line Items]            
Average Annual Return, Percent 5.96% 6.94% 6.16%      
Without Sales Load [Member] | C000214277            
Average Annual Return [Line Items]            
Average Annual Return, Percent 19.36% 10.84%   12.29%    
Columbia Threadneedle: S&P 500® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($41,793)          
Average Annual Return, Percent 20.38% 12.79%       15.37%
Columbia Threadneedle: S&P 500® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($41,793)          
Average Annual Return, Percent 20.38% 12.79%       15.37%
Columbia Threadneedle: S&P 500® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($41,793)          
Average Annual Return, Percent 20.38% 12.79%       15.37%
Columbia Threadneedle: S&P 500® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($41,793)          
Average Annual Return, Percent 20.38% 12.79%       15.37%
Columbia Threadneedle: S&P 500® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($41,793)          
Average Annual Return, Percent 20.38% 12.79%       15.37%
Columbia Threadneedle: S&P 500® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($41,793)          
Average Annual Return, Percent 20.38% 12.79%       15.37%
Columbia Threadneedle: S&P 500® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($41,793)          
Average Annual Return, Percent 20.38% 12.79%       15.37%
Columbia Threadneedle: Russell 1000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 1000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($40,910)          
Average Annual Return, Percent 19.77% 12.10%       15.13%
Columbia Threadneedle: Russell 1000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 1000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($40,910)          
Average Annual Return, Percent 19.77% 12.10%       15.13%
Columbia Threadneedle: Russell 1000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 1000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($40,910)          
Average Annual Return, Percent 19.77% 12.10%       15.13%
Columbia Threadneedle: Russell 1000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 1000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($40,910)          
Average Annual Return, Percent 19.77% 12.10%       15.13%
Columbia Threadneedle: Russell 1000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 1000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($40,910)          
Average Annual Return, Percent 19.77% 12.10%       15.13%
Columbia Threadneedle: Russell 1000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 1000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($40,910)          
Average Annual Return, Percent 19.77% 12.10%       15.13%
Columbia Threadneedle: Russell 1000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 1000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($40,910)          
Average Annual Return, Percent 19.77% 12.10%       15.13%
Columbia Threadneedle: MSCI EAFE Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Index (Net) ($24,869)          
Average Annual Return, Percent 21.62% 9.35%       9.54%
Columbia Threadneedle: MSCI EAFE Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Index (Net) ($24,869)          
Average Annual Return, Percent 21.62% 9.35%       9.54%
Columbia Threadneedle: MSCI EAFE Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Index (Net) ($24,869)          
Average Annual Return, Percent 21.62% 9.35%       9.54%
Columbia Threadneedle: MSCI EAFE Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Index (Net) ($24,869)          
Average Annual Return, Percent 21.62% 9.35%       9.54%
Columbia Threadneedle: MSCI EAFE Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Index (Net) ($24,869)          
Average Annual Return, Percent 21.62% 9.35%       9.54%
Columbia Threadneedle: MSCI EAFE Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Index (Net) ($24,869)          
Average Annual Return, Percent 21.62% 9.35%       9.54%
Columbia Threadneedle: MSCI ACWI Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI Index (Net) ($32,693)          
Average Annual Return, Percent 22.35% 10.88%       12.58%
Columbia Threadneedle: MSCI ACWI Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI Index (Net) ($32,693)          
Average Annual Return, Percent 22.35% 10.88%       12.58%
Columbia Threadneedle: MSCI ACWI Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI Index (Net) ($32,693)          
Average Annual Return, Percent 22.35% 10.88%       12.58%
Columbia Threadneedle: MSCI ACWI Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI Index (Net) ($32,693)          
Average Annual Return, Percent 22.35% 10.88%       12.58%
Columbia Threadneedle: MSCI ACWI Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI Index (Net) ($32,693)          
Average Annual Return, Percent 22.35% 10.88%       12.58%
Columbia Threadneedle: MSCI ACWI Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI Index (Net) ($32,693)          
Average Annual Return, Percent 22.35% 10.88%       12.58%
Columbia Threadneedle: MSCI China Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI China Index (Net) ($14,948)          
Average Annual Return, Percent (6.11%) (2.20%)       4.10%
Columbia Threadneedle: MSCI China Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI China Index (Net) ($14,948)          
Average Annual Return, Percent (6.11%) (2.20%)       4.10%
Columbia Threadneedle: MSCI China Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI China Index (Net) ($14,948)          
Average Annual Return, Percent (6.11%) (2.20%)       4.10%
Columbia Threadneedle: MSCI ACWI ex USA Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Index (Net) ($25,109)          
Average Annual Return, Percent 27.35% 9.37%       9.64%
Columbia Threadneedle: MSCI ACWI ex USA Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Index (Net) ($25,109)          
Average Annual Return, Percent 27.35% 9.37%       9.64%
Columbia Threadneedle: MSCI ACWI ex USA Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Index (Net) ($25,109)          
Average Annual Return, Percent 27.35% 9.37%       9.64%
Columbia Threadneedle: MSCI ACWI ex USA Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Index (Net) ($25,109)          
Average Annual Return, Percent 27.35% 9.37%       9.64%
Columbia Threadneedle: MSCI ACWI ex USA Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Index (Net) ($25,109)          
Average Annual Return, Percent 27.35% 9.37%       9.64%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Bloomberg Global Aggregate Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg Global Aggregate Index ($10,348)          
Average Annual Return, Percent 0.60% (1.74%)       0.34%
Columbia Threadneedle: MSCI EAFE Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Index (Net) ($19,512)          
Average Annual Return, Percent 21.62% 9.35%     8.40%  
Columbia Threadneedle: Russell 3000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 3000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($39,898)          
Average Annual Return, Percent 20.10% 11.80%       14.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($10,587)          
Average Annual Return, Percent 1.89% (0.29%) 0.84%      
Columbia Threadneedle: MSCI EAFE Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Index (Net) ($20,227)          
Average Annual Return, Percent 21.62% 9.35%   10.64%    
Columbia Threadneedle: Blended Benchmark - 60% S&P 500® Index, 40% Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Blended Benchmark - 60% S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index, 40% Bloomberg U.S. Aggregate Bond Index ($25,571)          
Average Annual Return, Percent 12.82% 7.59%       9.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Blended Benchmark - 60% S&P 500® Index, 40% Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Blended Benchmark - 60% S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index, 40% Bloomberg U.S. Aggregate Bond Index ($25,571)          
Average Annual Return, Percent 12.82% 7.59%       9.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Blended Benchmark - 60% S&P 500® Index, 40% Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Blended Benchmark - 60% S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index, 40% Bloomberg U.S. Aggregate Bond Index ($25,571)          
Average Annual Return, Percent 12.82% 7.59%       9.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Blended Benchmark - 60% S&P 500® Index, 40% Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Blended Benchmark - 60% S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index, 40% Bloomberg U.S. Aggregate Bond Index ($25,571)          
Average Annual Return, Percent 12.82% 7.59%       9.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Blended Benchmark - 60% S&P 500® Index, 40% Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Blended Benchmark - 60% S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index, 40% Bloomberg U.S. Aggregate Bond Index ($25,571)          
Average Annual Return, Percent 12.82% 7.59%       9.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Blended Benchmark - 60% S&P 500® Index, 40% Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Blended Benchmark - 60% S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index, 40% Bloomberg U.S. Aggregate Bond Index ($25,571)          
Average Annual Return, Percent 12.82% 7.59%       9.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: Blended Benchmark - 60% S&P 500® Index, 40% Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Blended Benchmark - 60% S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index, 40% Bloomberg U.S. Aggregate Bond Index ($25,571)          
Average Annual Return, Percent 12.82% 7.59%       9.84%
Columbia Threadneedle: Bloomberg U.S. Aggregate Bond Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index ($11,489)          
Average Annual Return, Percent 1.89% (0.29%)       1.40%
Columbia Threadneedle: MSCI Emerging Markets Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI Emerging Markets Index (Net) ($24,305)          
Average Annual Return, Percent 39.25% 8.18%       9.29%
Columbia Threadneedle: MSCI Emerging Markets Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI Emerging Markets Index (Net) ($24,305)          
Average Annual Return, Percent 39.25% 8.18%       9.29%
Columbia Threadneedle: MSCI Emerging Markets Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI Emerging Markets Index (Net) ($24,305)          
Average Annual Return, Percent 39.25% 8.18%       9.29%
Columbia Threadneedle: MSCI Emerging Markets Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI Emerging Markets Index (Net) ($24,305)          
Average Annual Return, Percent 39.25% 8.18%       9.29%
Columbia Threadneedle: MSCI Emerging Markets Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI Emerging Markets Index (Net) ($24,305)          
Average Annual Return, Percent 39.25% 8.18%       9.29%
Columbia Threadneedle: MSCI Emerging Markets Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI Emerging Markets Index (Net) ($24,305)          
Average Annual Return, Percent 39.25% 8.18%       9.29%
Columbia Threadneedle: S&P Global 1200 Information Technology Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P Global 1200 Information Technology Index (Net) ($89,272)          
Average Annual Return, Percent 43.41% 20.37%       24.47%
Columbia Threadneedle: S&P Global 1200 Information Technology Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P Global 1200 Information Technology Index (Net) ($89,272)          
Average Annual Return, Percent 43.41% 20.37%       24.47%
Columbia Threadneedle: S&P Global 1200 Information Technology Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P Global 1200 Information Technology Index (Net) ($89,272)          
Average Annual Return, Percent 43.41% 20.37%       24.47%
Columbia Threadneedle: S&P Global 1200 Information Technology Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P Global 1200 Information Technology Index (Net) ($89,272)          
Average Annual Return, Percent 43.41% 20.37%       24.47%
Columbia Threadneedle: S&P Global 1200 Information Technology Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P Global 1200 Information Technology Index (Net) ($89,272)          
Average Annual Return, Percent 43.41% 20.37%       24.47%
Columbia Threadneedle: S&P Global 1200 Information Technology Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name S&P Global 1200 Information Technology Index (Net) ($89,272)          
Average Annual Return, Percent 43.41% 20.37%       24.47%
Columbia Threadneedle: Hang Seng Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Hang Seng Index ($11,011)          
Average Annual Return, Percent 1.39% (0.40%)       0.97%
Columbia Threadneedle: Hang Seng Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Hang Seng Index ($11,011)          
Average Annual Return, Percent 1.39% (0.40%)       0.97%
Columbia Threadneedle: Hang Seng Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Hang Seng Index ($11,011)          
Average Annual Return, Percent 1.39% (0.40%)       0.97%
Columbia Threadneedle: MSCI ACWI ex USA Value Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Value Index (Net) ($26,711)          
Average Annual Return, Percent 33.96% 13.69%       10.32%
Columbia Threadneedle: MSCI ACWI ex USA Value Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Value Index (Net) ($26,711)          
Average Annual Return, Percent 33.96% 13.69%       10.32%
Columbia Threadneedle: MSCI ACWI ex USA Value Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Value Index (Net) ($26,711)          
Average Annual Return, Percent 33.96% 13.69%       10.32%
Columbia Threadneedle: MSCI ACWI ex USA Value Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Value Index (Net) ($26,711)          
Average Annual Return, Percent 33.96% 13.69%       10.32%
Columbia Threadneedle: MSCI ACWI ex USA Value Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI ex USA Value Index (Net) ($26,711)          
Average Annual Return, Percent 33.96% 13.69%       10.32%
Columbia Threadneedle: Russell Midcap® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell Midcap<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($31,238)          
Average Annual Return, Percent (1.16%) 4.27%       12.06%
Columbia Threadneedle: Russell Midcap® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell Midcap<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($31,238)          
Average Annual Return, Percent (1.16%) 4.27%       12.06%
Columbia Threadneedle: Russell Midcap® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell Midcap<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($31,238)          
Average Annual Return, Percent (1.16%) 4.27%       12.06%
Columbia Threadneedle: Russell Midcap® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell Midcap<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($31,238)          
Average Annual Return, Percent (1.16%) 4.27%       12.06%
Columbia Threadneedle: Russell Midcap® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell Midcap<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($31,238)          
Average Annual Return, Percent (1.16%) 4.27%       12.06%
Columbia Threadneedle: Russell Midcap® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell Midcap<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($31,238)          
Average Annual Return, Percent (1.16%) 4.27%       12.06%
Columbia Threadneedle: Russell 2000® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($27,528)          
Average Annual Return, Percent 23.25% 5.04%       10.66%
Columbia Threadneedle: Russell 2000® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($27,528)          
Average Annual Return, Percent 23.25% 5.04%       10.66%
Columbia Threadneedle: Russell 2000® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($27,528)          
Average Annual Return, Percent 23.25% 5.04%       10.66%
Columbia Threadneedle: Russell 2000® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($27,528)          
Average Annual Return, Percent 23.25% 5.04%       10.66%
Columbia Threadneedle: Russell 2000® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($27,528)          
Average Annual Return, Percent 23.25% 5.04%       10.66%
Columbia Threadneedle: Russell 2000® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($27,528)          
Average Annual Return, Percent 23.25% 5.04%       10.66%
Columbia Threadneedle: Russell 2000® Growth Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Growth Index ($27,528)          
Average Annual Return, Percent 23.25% 5.04%       10.66%
Columbia Threadneedle: FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged ($8,668)          
Average Annual Return, Percent (0.54%) (4.32%)       (1.42%)
Columbia Threadneedle: ICE BofA US Cash Pay High Yield Constrained Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name ICE BofA US Cash Pay High Yield Constrained Index ($16,692)          
Average Annual Return, Percent 4.77% 4.08%       5.26%
Columbia Threadneedle: JPMorgan Emerging Markets Bond Index - Global            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name JPMorgan Emerging Markets Bond Index - Global ($13,526)          
Average Annual Return, Percent 6.99% 2.09%       3.07%
Columbia Threadneedle: FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged ($8,668)          
Average Annual Return, Percent (0.54%) (4.32%)       (1.42%)
Columbia Threadneedle: ICE BofA US Cash Pay High Yield Constrained Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name ICE BofA US Cash Pay High Yield Constrained Index ($16,692)          
Average Annual Return, Percent 4.77% 4.08%       5.26%
Columbia Threadneedle: JPMorgan Emerging Markets Bond Index - Global            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name JPMorgan Emerging Markets Bond Index - Global ($13,526)          
Average Annual Return, Percent 6.99% 2.09%       3.07%
Columbia Threadneedle: FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged ($8,668)          
Average Annual Return, Percent (0.54%) (4.32%)       (1.42%)
Columbia Threadneedle: ICE BofA US Cash Pay High Yield Constrained Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name ICE BofA US Cash Pay High Yield Constrained Index ($16,692)          
Average Annual Return, Percent 4.77% 4.08%       5.26%
Columbia Threadneedle: JPMorgan Emerging Markets Bond Index - Global            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name JPMorgan Emerging Markets Bond Index - Global ($13,526)          
Average Annual Return, Percent 6.99% 2.09%       3.07%
Columbia Threadneedle: FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged ($8,668)          
Average Annual Return, Percent (0.54%) (4.32%)       (1.42%)
Columbia Threadneedle: ICE BofA US Cash Pay High Yield Constrained Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name ICE BofA US Cash Pay High Yield Constrained Index ($16,692)          
Average Annual Return, Percent 4.77% 4.08%       5.26%
Columbia Threadneedle: JPMorgan Emerging Markets Bond Index - Global            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name JPMorgan Emerging Markets Bond Index - Global ($13,526)          
Average Annual Return, Percent 6.99% 2.09%       3.07%
Columbia Threadneedle: FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged ($8,668)          
Average Annual Return, Percent (0.54%) (4.32%)       (1.42%)
Columbia Threadneedle: ICE BofA US Cash Pay High Yield Constrained Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name ICE BofA US Cash Pay High Yield Constrained Index ($16,692)          
Average Annual Return, Percent 4.77% 4.08%       5.26%
Columbia Threadneedle: JPMorgan Emerging Markets Bond Index - Global            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name JPMorgan Emerging Markets Bond Index - Global ($13,526)          
Average Annual Return, Percent 6.99% 2.09%       3.07%
Columbia Threadneedle: FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged ($8,668)          
Average Annual Return, Percent (0.54%) (4.32%)       (1.42%)
Columbia Threadneedle: ICE BofA US Cash Pay High Yield Constrained Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name ICE BofA US Cash Pay High Yield Constrained Index ($16,692)          
Average Annual Return, Percent 4.77% 4.08%       5.26%
Columbia Threadneedle: JPMorgan Emerging Markets Bond Index - Global            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name JPMorgan Emerging Markets Bond Index - Global ($13,526)          
Average Annual Return, Percent 6.99% 2.09%       3.07%
Columbia Threadneedle: FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name FTSE Non-U.S. World Government Bond (All Maturities) Index – Unhedged ($8,668)          
Average Annual Return, Percent (0.54%) (4.32%)       (1.42%)
Columbia Threadneedle: ICE BofA US Cash Pay High Yield Constrained Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name ICE BofA US Cash Pay High Yield Constrained Index ($16,692)          
Average Annual Return, Percent 4.77% 4.08%       5.26%
Columbia Threadneedle: JPMorgan Emerging Markets Bond Index - Global            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name JPMorgan Emerging Markets Bond Index - Global ($13,526)          
Average Annual Return, Percent 6.99% 2.09%       3.07%
Columbia Threadneedle: FTSE Three-Month U.S. Treasury Bill Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name FTSE Three-Month U.S. Treasury Bill Index ($12,758)          
Average Annual Return, Percent 3.95% 3.82%       2.47%
Columbia Threadneedle: Russell 2000® Index            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name Russell 2000<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index ($27,269)          
Average Annual Return, Percent 26.46% 6.85%       10.55%
Columbia Threadneedle: MSCI EAFE Value Index (Net)            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI EAFE Value Index (Net) ($23,028)          
Average Annual Return, Percent 28.49% 14.55%   12.71%