iXBRL in Calc - how to?

I am just wondering what the status with importing iXBRL data into Calc is? If this feature is not available, what kind of solution have people found.

There is a reported bug enhancement, Bug 130858 - XBRL to/from Calc?
Better add a comment there.

Similar quesrtion:

Here is a possible solution: (the large macro inside the sample file drops an error message for me):

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