Stock-Based Compensation - Payouts (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
$40.00 and above
Stock-Based Compensation Details [Line Items]
Payout (percent of target)		200.00%
$45.00 and above
Stock-Based Compensation Details [Line Items]
Payout (percent of target)	200.00%
$35.00
Stock-Based Compensation Details [Line Items]
Payout (percent of target)		100.00%
$40.00
Stock-Based Compensation Details [Line Items]
Payout (percent of target)	100.00%
$30.00
Stock-Based Compensation Details [Line Items]
Payout (percent of target)		50.00%
$37.00
Stock-Based Compensation Details [Line Items]
Payout (percent of target)	50.00%
Below $37.00
Stock-Based Compensation Details [Line Items]
Payout (percent of target)	0.00%
Below $30.00
Stock-Based Compensation Details [Line Items]
Payout (percent of target)		0.00%
TSR | Performance Shares | 80th and above
Stock-Based Compensation Details [Line Items]
Payout (percent of target)			200.00%
TSR | Performance Shares | 50th
Stock-Based Compensation Details [Line Items]
Payout (percent of target)			100.00%
TSR | Performance Shares | 25th
Stock-Based Compensation Details [Line Items]
Payout (percent of target)			35.00%
TSR | Performance Shares | Below 25th
Stock-Based Compensation Details [Line Items]
Payout (percent of target)			0.00%