Restructuring Activities - Summary of Restructuring Costs Recognized and Total Restructuring Cost Expected to Recognized (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Restructuring Cost And Reserve [Line Items]
Total Costs Recognized To Date	$ 2,726
Total Expected Program Cost	5,339
Severance and employee-related benefits
Restructuring Cost And Reserve [Line Items]
Total Costs Recognized To Date	1,810
Total Expected Program Cost	4,383
Contract termination costs
Restructuring Cost And Reserve [Line Items]
Total Expected Program Cost	40
Impairment of intangible assets
Restructuring Cost And Reserve [Line Items]
Total Costs Recognized To Date	920
Total Expected Program Cost	920
Other restructuring costs
Restructuring Cost And Reserve [Line Items]
Total Costs Recognized To Date	(4)
Total Expected Program Cost	$ (4)