Significant Accounting Policies Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jul. 01, 2019	Jun. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 29,842		$ 0
Current operating lease liabilities	6,462		0
Non-current operating lease liabilities	$ 28,765		$ 0
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets		$ 28,500
Deferred Rent Credit		6,500
Current operating lease liabilities		7,400
Non-current operating lease liabilities		$ 26,500