Basis of Presentation (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities	$ 37,232
Operating lease right-of-use assets	$ 34,142
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities		$ 40,800
Operating lease right-of-use assets		37,600
Deferred rent liabilities		4,300
Prepaid rent		$ 1,100