Unknown SuiteScriptError "document\" is not defined

Hi All,

We try to create a payment card record in a suitelet script (ServerSide). It is referring the document object in Save. 

The same script works on client-side. But receiving an error in server side.

The error message is shown below.

"type":"error.SuiteScriptError","name":"ReferenceError","message":"\"document\" is not defined.",

The code snippet is given below:-

  var paymtCard = record.create({type:"paymentcard",isDynamic:false});

      paymtCard.setValue("instrumenttype",1);

      paymtCard.setValue("entity",obj.custpage_customer);

      paymtCard.setValue("paymentmethod",cardType);

      paymtCard.setValue("cardnumber",cardNumber);

      paymtCard.setValue("cardbrand",creditCardBrand);

      paymtCard.setValue("expirationdate",expirationDate);

      paymtCard.setValue("nameoncard",cardHolderName);

      paymtCard.setValue("cardtype","CREDIT");

      paymtCard.setValue("memo",memo);