Dic: take something in (one's) stride

• We were afraid that success would spoil her, but she just took it in stride.
• Certain amount of criticism comes with the job and you have to learn to take it in stride.
• Beth was struck by how Naomi took the mistake in her stride.

1. Fig. to accept advances or setbacks as the normal course of events.
2. to calmly and easily deal with something unpleasant or difficult and not let it affect what you are doing.
3. PHRASE : V inflects | In British English, if you take a problem or difficulty in your stride, you deal with it calmly and easily. The American expression is take something in stride.

........ http://idioms.thefreedictionary.com/stride, Cobuild