Stockholders' Equity - Stock Repurchases - General Information (Details) - USD ($) $ in Millions	Dec. 31, 2020	May 24, 2018
Stockholders' Equity
Amount authorized under stock repurchase plan		$ 400.0
Remaining authorized repurchase amount	$ 186.3

Amount remaining of a stock repurchase plan authorized.

No definition available.

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant