Rules -- Tatami For Now

Tatami For Now was invented by the Japanese puzzle company Nikoli (under the name Tatamibari). The puzzle is based on tatami mats, a traditional Japanese flooring; it is considered bad luck to have four tatami mats sharing a corner.

1. Divide the grid into rectangles (squares count as rectangles) along the grid lines in accordance with the following rules.
2. Every piece must contain exactly one symbol (+, -, or |).
3. Every piece containing a + must be square. Every piece containing a - must be wider than it is tall. Every piece containing a | must be taller than it is wide.
4. No four pieces may meet at a corner.