When analysing, thinking, I actually have depth as a strength a looot more than breadth. I will happily look at something in depth, keep analysing it in depth, instead of moving on to something else.
Also I'm perfectly capable of writing a long wall of text if I'm trying to look at something in depth. Though it depends; at university when writing papers to hand in, I was never the type to put in much irrelevant shit. I stayed concise and relevant and on topic, no extra bullshit added. But that's because logic is involved then and that logic naturally strips the irrelevant details out. When I'm writing about something in a long winded way, it's more a descriptive writing than a logical reasoning.
When I just go around (not thinking), I got an embarrassingly broad perception though.