The phrase "a commitment to the idea" is correct and usable in written English.
You can use it when discussing dedication or adherence to a particular concept or principle.
Example: "The organization has made a strong commitment to the idea of sustainability in all its operations."
Alternatives: "a dedication to the concept" or "an adherence to the principle".
The executive producers of the two shows share a commitment to the idea that the Tony Awards is a three-hour ceremony telecast over two networks.
I would like to see a commitment to the idea that all students at Berkeley have an involvement in the arts, some as makers and the others as appreciators who will have their entire lives enriched.
Pearce would like to see a commitment to the idea of integrating health and social care services, to think beyond simply patching up the current system and start working out what services we need, and how we pay for them.
Whitehead and Hartshorne share a commitment to the idea that God is the supreme creative power among many lesser creators.
When engaging in action research, teachers essentially are motivated by a commitment to the idea of 'rationality and practical results' (Mauzy & Milne, 2002, p. 52).
If God is himself a person, then this seems to be a commitment to the idea that personhood itself is something that must be intrinsically good.
Recognising peoples' self-identified gender does not require governments to acknowledge any new or special rights; instead, it is a commitment to the core idea that the state will not decide who people are for them.
And there is no agenda behind the bulk of advocates for school choice, other than a commitment to the fundamental idea that every child deserves access to a quality education as a basic civil right.
THE architectural firm of Beyer Blinder Belle was born in the tumultuous year of 1968, with a bow to Jane Jacobs and a commitment to the maverick ideas of community-based planning and rehabilitation rather than bulldozing.
Monica Iken has not stopped since last fall when she realized that the death of her husband, Michael, required a total commitment to the idea of a proper memorial in Lower Manhattan.
In Europe we have shown that it is possible to combine a vigorous defence of our own interests with a deep commitment to the idea and to the ideals of the community.
