Stockholder's Equity - Shares of Common Stock Issued Under Employee Stock Purchase Plan (Details)	3 Months Ended
	Mar. 31, 2020 $ / shares shares
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Number of shares available, beginning balance (in shares)	132,449
Shares issued during period (in shares)	4,663
Number of shares available, ending balance (in shares)	127,786
Per share price of shares issued during period (in dollars per share) | $ / shares	$ 130.87