Annual report pursuant to Section 13 and 15(d)

Summary of Goodwill (Parenthetical) (Detail)

v3.6.0.2
Summary of Goodwill (Parenthetical) (Detail)
$ in Thousands
Dec. 31, 2016
USD ($)
U.S. Operating Segment  
Goodwill [Line Items]  
Accumulated impairment losses $ 214,031
International Operating Segment  
Goodwill [Line Items]  
Accumulated impairment losses $ 27,622