Deck cargo can be carried in containers in some cases, while in others, it may be lashed directly to the decks of the ship and covered with protective materials. For bulky and large cargoes too big for containerization, this may be necessary. In all cases, the cargo is thoroughly inspected when it is placed and the load is carefully balanced for safety. Papers documenting the type of cargo and its history must also be carried, including lading papers detailing where the cargo originated and where it is going.