Stock Compensation - RSU and PSU award activity (Details)	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Shares Subject to Outstanding Options, Shares
Outstanding at the beginning of the period (in shares) | shares	3,966,888
Outstanding at the end of the period (in shares) | shares	3,847,552
Shares Subject to Outstanding Options, Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 84.91
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 84.64
Restricted Stock Units (RSUs)
Shares Subject to Outstanding Options, Shares
Granted (in shares) | shares	359,524
Released (in shares) | shares	(153,897)
Cancelled (in shares) | shares	(171,234)
Shares Subject to Outstanding Options, Weighted Average Exercise Price
Granted (in dollars per share) | $ / shares	$ 74.37
Released (in dollars per share) | $ / shares	83.43
Cancelled (in dollars per share) | $ / shares	$ 86.06
Performance Stock Units (PSUs)
Shares Subject to Outstanding Options, Shares
Released (in shares) | shares	(152,009)
Cancelled (in shares) | shares	(1,720)
Shares Subject to Outstanding Options, Weighted Average Exercise Price
Released (in dollars per share) | $ / shares	$ 67.18
Cancelled (in dollars per share) | $ / shares	$ 65.76