The word 详细 is formed by combining two characters that conceptually reinforce each other to create a unified meaning. 详 (xiáng) carries the core idea of "detailed, thorough, or complete", often referring to the depth and breadth of information. 细 (xì) means "fine, slender, or minute", emphasizing the small, granular aspects and careful attention to particulars. Together, they create a compound where 详 provides the overarching sense of comprehensive coverage and 细 adds the dimension of fine-grained precision, resulting in the complete meaning of "detailed in both scope and minutiae".