Income Taxes Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands		Dec. 31, 2015		Dec. 31, 2014
Income Tax Disclosure [Abstract]
Deferred Tax Assets Tax Accruals And Allowance		$ 29,279		$ 25,756
Deferred Tax Assets, Operating Loss Carryforwards		5,353		6,210
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost		9,895		12,416
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent		2,740		2,137
Deferred Tax Assets, Deferred Income		1,185		1,654
Deferred Tax Assets, Tax Credit Carryforwards		2,262		1,769
Deferred Tax Assets Intangible Assets		22,778		21,916
Deferred Tax Assets, Other		0		142
Deferred Tax Assets, Tax Deferred Expense		73,492		72,000
Deferred Tax Liabilities Deferred Expense Depreciation And Amortization		967		1,245
Other deferred tax liabilities		438		0
Deferred Tax Liabilities, Net		1,405		1,245
Deferred Tax Assets, Valuation Allowance	[1]	(3,642)		(3,020)
Deferred income taxes		0		29,039
Non-current deferred income taxes		68,445	[2]	38,696
Deferred Tax Assets, Net		$ 68,445		$ 67,735

[1] Valuation allowance is presented gross. The valuation allowance net of the federal tax effect is ($2,367) and ($1,963) for the years ended December 31, 2015 and December 31, 2014, respectively.

[2] This includes a reclassification of the net current deferred tax asset to the net non-current deferred tax asset in the consolidated Balance Sheet as of December 31, 2015. No prior periods were retrospectively adjusted. Refer to Note 1, The Company and Summary of Significant Accounting Policies, for additional information regarding the early adoption of the ASU 2015-17.