XML 62 R51.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value of Financial Instruments - Carrying Amounts and Fair Values of Financial Instruments Measured based on Level Two Inputs (Detail) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Carrying Value    
Fair Value of Financial Instruments    
Indebtedness $ 653,750 $ 517,272
Notes receivable 100,486 83,058
Interest rate swap liabilities 63 69
Interest rate swap and cap assets 3,341 1,525
Fair Value    
Fair Value of Financial Instruments    
Indebtedness 647,311 518,417
Notes receivable 100,486 83,058
Interest rate swap liabilities 63 69
Interest rate swap and cap assets $ 3,341 $ 1,525