Fair Value Measurements (Change In Fair Value Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Contingent consideration liability - Beginning Balance	$ 11,448
Change in fair value of contingent consideration	306	$ 66	$ 0
Contingent consideration liability - Ending Balance	0	11,448
Fair Value, Measurements, Recurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Contingent consideration liability - Beginning Balance	11,448
Contingent consideration liability - Ending Balance		11,448
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Contingent consideration liability - Beginning Balance	11,448	0	0
Change in fair value of contingent consideration	306	66	0
Decrease in iSocket contingent consideration liability related to goodwill adjustment (See Note 7)	(2,317)	0	0
Issuance of shares associated with iSocket and Chango contingent consideration	(25,608)	0	0
Contingent consideration liability - Ending Balance	0	11,448	0
Significant Unobservable Inputs (Level 3) | iSocket | Fair Value, Measurements, Recurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Change in fair value of contingent consideration	0	11,382	0
Significant Unobservable Inputs (Level 3) | Chango | Fair Value, Measurements, Recurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Change in fair value of contingent consideration	$ 16,171	$ 0	$ 0