XML 55 R44.htm IDEA: XBRL DOCUMENT v3.8.0.1
Asset Impairment - Additional information (Detail)
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
Asset Impairment Charges [Line Items]  
Asset impairment charge $ 3.2
Definite-lived intangible assets 3.0
Fixed Assets $ 0.2