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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		11 Months Ended	12 Months Ended			26 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020	Aug. 06, 2020	Jun. 10, 2014	Feb. 29, 2012
Class of Stock [Line Items]
Repayments of long-term debt			$ 2,802	$ 0
Number of shares purchased from plan participants (in shares)	87,155
Dividend per common share (in usd per share)		$ 0	$ 0
Common stock
Class of Stock [Line Items]
Exercise of 3.25% Convertible Note (in shares)	19,033		19,033
3.25% Convertible Notes | Convertible Debt
Class of Stock [Line Items]
Stated interest rate											3.25%
Repayments of long-term debt	$ 2,800
2012 Repurchase Program
Class of Stock [Line Items]
Maximum number of shares authorized to be repurchased (in shares)												5,000,000
Shares repurchased under the program (in shares)						1,140,819	197,870	600,000
Aggregate cost of shares repurchased						$ 87,500	$ 16,000	$ 42,500	$ 204,600
2020 Repurchase Program
Class of Stock [Line Items]
Maximum number of shares authorized to be repurchased (in shares)										10,000,000,000,000
Shares repurchased under the program (in shares)			0		2,490,599
Aggregate cost of shares repurchased					$ 177,800

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