Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions and Dispositions - Additional Information (Detail)

v3.7.0.1
Business Acquisitions and Dispositions - Additional Information (Detail) - Franchise
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Business Combinations [Abstract]        
Number of franchises acquired 0 0 0 0
Number of franchises disposed 0 0 0 0