Annual report pursuant to Section 13 and 15(d)

Segment Reporting and Geographic Information - Additional Information (Detail)

v2.4.1.9
Segment Reporting and Geographic Information - Additional Information (Detail)
12 Months Ended
Dec. 31, 2014
Segment
Segment Reporting [Abstract]  
Number of reportable segments 5us-gaap_NumberOfReportableSegments