How much does it cost to build an outdoor staircase?

I'm curious to know, how much does it typically cost to construct an outdoor staircase? Are there any factors that can significantly influence the price, such as the size, materials used, or the complexity of the design? I'm planning a renovation project and want to ensure I budget accordingly. Is there a standard range of prices that I should be aware of, or does each staircase vary greatly in cost? Any insights or advice you can offer would be greatly appreciated.