XML 65 R41.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income (Loss) Per Common Share - Additional Information (Detail)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Earnings Per Share Disclosure [Line Items]    
Options nonvested excluded from computation of diluted earnings per share 998,432us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 708,045us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount