Acquisitions - Purchase Price Allocation for Acquisitions (Parenthetical) - (Detail) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Acquired In-Place Leases | ||
| Business Acquisition [Line Items] | ||
| Weighted average amortization period | 18 years | 18 years |
| Acquired Above-Market Leases | ||
| Business Acquisition [Line Items] | ||
| Weighted average amortization period | 19 years | 19 years |
| Acquired Below-Market Leases | ||
| Business Acquisition [Line Items] | ||
| Weighted average amortization period | 18 years | 18 years |