XML 121 R104.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Intangible Assets and Goodwill - Additional Information (Detail)
12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Weighted-average amortization period remaining for definite-lived intangible assets 10 years