Subsequent Events - Additional Information (Detail) |
12 Months Ended | ||
---|---|---|---|
Feb. 03, 2017
ft²
Option
|
Oct. 21, 2015 |
Dec. 31, 2016 |
|
Subsequent Event [Line Items] | |||
Lease term | 20 years | 20 years | |
Occupational Safety and Health Administration [Member] | Subsequent Event [Member] | |||
Subsequent Event [Line Items] | |||
Acquisition of lease property | ft² | 75,000 | ||
Lease term | 20 years | ||
Building constructed year | 2003 | ||
Number of renewal options | Option | 2 | ||
Lease renewal term | 5 years | ||
Lease expiration year | 2034 |