Stock-Based Compensation (Details 2)	12 Months Ended
	Dec. 31, 2019 $ / shares shares
$15.27 to $20.69
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares (in shares) | shares	21,195
Options Outstanding, Average Remaining Life (Years)	11 months 19 days
Options Outstanding, Average Exercise Price (in dollars per share)	$ 19.95
Options Exercisable, Number of Shares (in shares) | shares	21,195
Options Exercisable, Average Exercise Price (in dollars per share)	$ 19.95
Range of Exercise Prices, Lower Range Limit (in dollars per share)	15.27
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 20.69
$24.24 to $30.71
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares (in shares) | shares	124,000
Options Outstanding, Average Remaining Life (Years)	5 years 9 months 25 days
Options Outstanding, Average Exercise Price (in dollars per share)	$ 30.32
Options Exercisable, Number of Shares (in shares) | shares	124,000
Options Exercisable, Average Exercise Price (in dollars per share)	$ 30.32
Range of Exercise Prices, Lower Range Limit (in dollars per share)	24.24
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 30.71
$34.92 to $37.13
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares (in shares) | shares	133,905
Options Outstanding, Average Remaining Life (Years)	5 years 2 months 15 days
Options Outstanding, Average Exercise Price (in dollars per share)	$ 36.13
Options Exercisable, Number of Shares (in shares) | shares	133,905
Options Exercisable, Average Exercise Price (in dollars per share)	$ 36.13
Range of Exercise Prices, Lower Range Limit (in dollars per share)	34.92
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 37.13
$47.04 to $59.28
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares (in shares) | shares	215,584
Options Outstanding, Average Remaining Life (Years)	7 years 8 months 8 days
Options Outstanding, Average Exercise Price (in dollars per share)	$ 53.28
Options Exercisable, Number of Shares (in shares) | shares	101,048
Options Exercisable, Average Exercise Price (in dollars per share)	$ 50.86
Range of Exercise Prices, Lower Range Limit (in dollars per share)	47.04
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 59.28
$59.46 to $63.38
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares (in shares) | shares	125,601
Options Outstanding, Average Remaining Life (Years)	9 years 1 month 28 days
Options Outstanding, Average Exercise Price (in dollars per share)	$ 60.70
Options Exercisable, Number of Shares (in shares) | shares	2,039
Options Exercisable, Average Exercise Price (in dollars per share)	$ 63.38
Range of Exercise Prices, Lower Range Limit (in dollars per share)	59.46
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 63.38