Balance Sheet Components (Components Of Other Current Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Balance Sheet Components [Abstract]
Accrued variable compensation	$ 8,440	$ 13,467
Deferred revenues	3,253	3,590
Payroll related costs	2,803	2,035
Accrued subcontractor fees	2,919	2,551
Accrued medical claims expense	1,480	1,296
Acquired liabilities	2,064	1,680
Estimated fair value of contingent consideration liability	0	1,606	[1]
Other current liabilities	7,149	4,073
Total	$ 28,108	$ 30,298

[1] Represents the fair value estimate of additional earnings-based contingent consideration that may be realized by Clear Task's selling shareholders 12 months after the Clear Task acquisition.