Rental Pool Operations (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($)
Rental Pool Operations [Line Items]
Lease Agreement Term	10 years
40% [Member]
Rental Pool Operations [Line Items]
Participants' quarterly distribution as a percentage of adjusted gross revenues	40.00%
Adjusted gross revenue	$ 10
45% [Member]
Rental Pool Operations [Line Items]
Participants' quarterly distribution as a percentage of adjusted gross revenues	45.00%
45% [Member] | Minimum [Member]
Rental Pool Operations [Line Items]
Adjusted gross revenue	$ 10
45% [Member] | Maximum [Member]
Rental Pool Operations [Line Items]
Adjusted gross revenue	$ 11
50% [Member]
Rental Pool Operations [Line Items]
Participants' quarterly distribution as a percentage of adjusted gross revenues	50.00%
Adjusted gross revenue	$ 11