detriment vs impairment

detriment and impairment both are nouns.

Word	Noun	Adjective	Verb	Adverb
detriment	Yes	No	No	No
impairment	Yes	No	No	No

As nouns, impairment is a hypernym of detriment; that is, impairment is a word with a broader meaning than detriment:

Other hypernyms of detriment include damage, harm.

detriment (noun)	impairment (noun)
a damage or loss	damage that results in a reduction of strength or quality
	the act of making something futile and useless (as by routine)
	the occurrence of a change for the worse
	the condition of being unable to perform as a consequence of physical or mental unfitness
	a symptom of reduced quality or strength