Organization and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016	Jan. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to net cash provided by operating activities	[1]	$ 162,862	$ 77,128
Decrease in net cash provided by financing activities	[1]	$ (18,518)	(6,436)
Accounting Standards Update 2016-09 | New Accounting Pronouncement, Early Adoption, Effect
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to long-term income tax liabilities				$ 1,800
Accounting Standards Update 2016-09 | New Accounting Pronouncement, Early Adoption, Effect | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle				1,800
Accounting Standards Update 2016-09, Forfeiture Rate Component | New Accounting Pronouncement, Early Adoption, Effect | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle				$ (1,000)
Accounting Standards Update 2016-09, Excess Tax Benefit | New Accounting Pronouncement, Early Adoption, Effect
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to net cash provided by operating activities			6,000
Decrease in net cash provided by financing activities			$ 6,000

[1] During the three months ended March 31, 2017, we adopted Accounting Standards Update 2016-09, "Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." Refer to Note 1 Recently Adopted Accounting Pronouncements for further details. This adoption resulted in a $6.0 million increase in net cash provided by operating activities and a corresponding $6.0 million decrease in net cash provided by financing activities for the three months ended March 31, 2016.