Document ID in Bank Statement

Hello Experts,

I created a remittance advice for an outstanding Customer Invoice with payment method as bank transfer. Later I created a bank Statement ( Bank Statement ID is 92) to clear the remittance Advice. The open Customer Invoice was cleared automatically after releasing the bank statement. If I look at the document flow of the remittance advice then it shows that the invoice was cleared by the bank statement but the Bank Statement Id was showing as different number. ( See the attachment - Remittance Advice.jpg ).

If I open the bank Statement which I created then in the Bank Statement I can see Document ID in the bank Statement. ( See attachment Bank Statement.jpg). I want to know, what is document Id in the bank Statement and where we have number range for this document ID.

Regards,

Saurabh