Stockholders' Equity - Shares Rollforward (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Class of Stock
Common Stock, beginning balance (in shares)	113,708,996	113,137,346	113,368,811	112,940,595
Shares issued under employee stock plans and exercises of stock options (in shares)	174,551	108,212	661,965	400,488
Shares withheld related to net share settlement (in shares)	(26,919)	(29,926)	(174,148)	(125,451)
Common Stock, ending balance (in shares)	113,856,628	113,215,632	113,856,628	113,215,632
Treasury Stock, beginning of the period (in shares)	0	0	0	0
Treasury Stock, at end of the period (in shares)	(459,083)	0	(459,083)	0
Common Stock, Outstanding (in shares)	113,397,545	113,215,632	113,397,545	113,215,632	113,368,811
Common stock
Class of Stock
Treasury Stock, Shares, Acquired	(459,083)	0	(459,083)	0