Foreign Income Documentation Translation

I just received notification to submit required documents to the IDOC service. One of the documents I’m required to send is my non-custodial parent’s tax return. Well the thing is my dad, who is my non-custodial parent, moved to Korea last summer and does not have his 2014 korean tax returns. However, he does have an income documentation from his employer stating how much he made during 2014. The income documentation from his employer is all in Korean and the currency is in the Korean Won. How do I go about translating this and submitting to the IDOC service? Do I just annotate the currency portions or like translate the whole document, and if so, how?

Thanks!