XML 39 R30.htm IDEA: XBRL DOCUMENT v3.4.0.3
Property and Equipment - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Depreciation and Other Amortization Expenses [Line Items]      
Impairment charges allocated to individual asset groups     $ 140.4
Depreciation and amortization expense $ 0.6 $ 2.3