Sign missing

[mrx23dot]

In https://www.sec.gov/ix?doc=/Archives/edgar/data/0000320193/000032019321000010/aapl-20201226.htm

for IncreaseDecreaseInAccountsReceivable

The html displays: (10,945), but the lib returns positive number, weirdly Sign=Positive is stated in xbrl, but the minus sign is needed for change_in_working_capital calculation.

[mrx23dot]

Any chance you could look into this one? It's a blocking one for me.

Cheers!

[manusimidt]

Ok, I will look into it tomorrow :)

[manusimidt]

The parser correctly reads in both facts. So this has something to do with the accounting background of the concept. Unfortunately, my knowledge of accounting is very limited. But what I noticed is that the fact of the previous time period is positive, but has a negative sign.

in XBRL:

<td>
   <span>
      (
      <ix:nonFraction 
         unitRef="usd" contextRef="i6e431846933d461fb8c8c0bdf98c9758_D20200927-20201226" 
         decimals="-6" format="ixt:numdotdecimal" 
         name="us-gaap:IncreaseDecreaseInAccountsReceivable" scale="6">10,945
      </ix:nonFraction>
      )
   </span>
</td>
<td>
   <span>
      <ix:nonFraction 
         unitRef="usd" contextRef="i142aac6a7c14434fb2a1a08f0f6ae9b9_D20190929-20191228" 
         decimals="-6" sign="-" format="ixt:numdotdecimal" 
         name="us-gaap:IncreaseDecreaseInAccountsReceivable" scale="6">2,015
      </ix:nonFraction>
   </span>
</td>

This means that for some reason Facts tagged with the concept IncreaseDecreaseInAccountsReceivable have a positive sign if Accounts Recievable decreases and a negative sign if the value increases.

I suspect that this has something to do with the balance of the Concept, it is set to credit for the concept IncreaseDecreaseInAccountsReceivable.

In a nutshell: debits (dr) record all of the money flowing into an account, while credits (cr) record all of the money flowing out of an account. https://bench.co/blog/bookkeeping/debits-credits/

[mrx23dot]

Ah, it just needs inverting to match up with the web view, easy enough, cheers!