XML 57 R45.htm IDEA: XBRL DOCUMENT v3.8.0.1
Summary of Significant Accounting Policies - Summary of Interest Incurred, Capitalized and Expensed for Units Settled (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Real Estate Investment Property, at Cost [Abstract]    
Total interest incurred and capitalized $ 4,223 $ 3,227
Total real estate taxes incurred and capitalized 354 240
Total interest and real estate taxes incurred and capitalized 4,577 3,467
Interest expensed as a component of cost of sales 2,604 1,833
Real estate taxes expensed as a component of cost of sales 267 235
Interest and real estate taxes expensed as a component of cost of sales $ 2,871 $ 2,068