Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment	$ 49,668			$ 7,379	$ (10,220)
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Accumulated deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment	$ 474,054	$ 455,297		414,653	$ 393,318	$ 372,884	$ 330,348
Adjustment | Accumulated deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment			$ 100	$ 105			$ 0