Linq Query to a Lookup with allow multiple values...

Hi,

I have document library where in I have added on Look up column with allow multiple values.

When I add documents in document library it shows ID as ";" seperated. i.e. 006e0000001uzRKAAY; 006e0000002MnNRAA0

I am quering this document library using linq. I am fetching this ID column in this linq query. Problem is it is giving me Entity Set. Following is my query:

 var documentsList = from documents in ILDMSDataContext.Documents.ScopeToFolder("", true).ToList()
                                        .Where(p => (((DropDownListYear.SelectedIndex == 0) || (p.Year != null && DropDownListYear.SelectedIndex != 0 && p.Year.Id == Convert.ToInt32(DropDownListYear.SelectedValue)))&& ((DropDownListDocumentType.SelectedIndex == 0) || (p.DocumentType != null && DropDownListDocumentType.SelectedIndex != 0 && p.DocumentType.Id == Convert.ToInt32(DropDownListDocumentType.SelectedValue)))&& ((DropDownListContractType.SelectedIndex == 0) || (p.ContractType != null && DropDownListContractType.SelectedIndex != 0 && p.ContractType.Id == Convert.ToInt32(DropDownListContractType.SelectedValue)))&& ((DropDownListAccount.SelectedIndex == 0) || (p.AccountID != null && DropDownListAccount.SelectedIndex != 0 && p.AccountID.Id == Convert.ToInt32(DropDownListAccount.SelectedValue)))&& ((TextBoxAgreementNumber.Text.Trim() == string.Empty) || (!string.IsNullOrEmpty(p.AgreementNumber) && p.AgreementNumber == TextBoxAgreementNumber.Text.Trim()))&& ((TextBoxFileName.Text.Trim() == string.Empty) || (!string.IsNullOrEmpty(p.Title) && p.Title == TextBoxFileName.Text.Trim()))))
                                    join accounts in ILDMSDataContext.Accounts on documents.AccountID.AccountID equals accounts.AccountID
                                    select new { FileName = documents.Title, Name = documents.Name, AccountID = documents.AccountID.AccountID, DocumentID = documents.DocumentID,OpportunityIDs =documents.OpportunityID, DocumentType = documents.DocumentType == null ? string.Empty : documents.DocumentType == null ? string.Empty : documents.DocumentType.Title, ContractType = documents.ContractType == null ? string.Empty : documents.ContractType.Title, Year = documents.Year == null ? string.Empty : documents.Year.Title, AgreementNumber = documents.AgreementNumber, AccountName = accounts == null ? string.Empty : accounts.Title };

OpportunityIDs =documents.OpportunityID this is the column which have Lookup with allow multiple values. Can anybody help me to get value of OpportunityID from Entity Set. Thanks.

Regards,

Amit