Related Party Arrangements - Narrative - Construction Management (Details) - Pacific Coast Land & Construction, Inc. [Member] - Affiliated Entity [Member] - Construction Management Agreement [Member]	12 Months Ended
	Dec. 31, 2018
Related Party Transaction [Line Items]
Construction management agreement, termination notification period	30 days
Minimum [Member]
Related Party Transaction [Line Items]
Construction management fee, percent	6.00%
Maximum [Member]
Related Party Transaction [Line Items]
Construction management fee, percent	12.00%