XML 87 R71.htm IDEA: XBRL DOCUMENT v3.3.1.900
Stockholders' Equity (Stock Compensation Plans) (Details) - shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant, Annual Increase 4.00%      
Restricted stock units outstanding (in shares) (195,834)      
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding (in shares) 778,388 665,210 357,991 187,622
Upland Software, Inc. 2010 Stock Plan [Member] | Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding (in shares) 383,073      
Upland Software, Inc. 2014 Stock Plan [Member] | Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding (in shares) 395,312      
Common stock shares reserved for issuance under the plan 184,513