Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Assets Recorded at Cost and Depreciated Using Straight-Line Method Over Estimated Useful Lives or Terms of Related Leases, If Shorter

Assets are recorded at cost and are depreciated using the straight-line method over their estimated useful lives or the terms of the related leases, if shorter, as follows:

Buildings and improvements	10–40 years
Furniture, fixtures and equipment	3–20 years
Leasehold improvements	10–20 years