Translation of "Stride" in Japanese

You're hitting your stride.

調子でてきたね。

He took it in his stride.

彼はそのことに関して平然としていた。

I don't know what to do with that guy. No matter how mad I get at him he just takes it in stride and pays no attention.

あいつにはまいったよ。どんなに厳しく怒っても、柳に風と受け流すだけだよ。