Employee Benefit Plans - Stock Options Outstanding by Range of Exercise Prices (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 9.46
Exercise price range, upper range limit (in dollars per share)	$ 24.07
Number of outstanding options (in shares) | shares	692
Outstanding options, weighted average remaining contractual term	5 years 6 months 18 days
Outstanding options, weighted average exercise price (in dollars per share)	$ 22.46
Number of exercisable options (in shares) | shares	692
Exercisable options, weighted average exercise price (in dollars per share)	$ 22.46
Range 01
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	9.46
Exercise price range, upper range limit (in dollars per share)	$ 9.46
Number of outstanding options (in shares) | shares	1
Outstanding options, weighted average remaining contractual term	2 years 14 days
Outstanding options, weighted average exercise price (in dollars per share)	$ 9.46
Number of exercisable options (in shares) | shares	1
Exercisable options, weighted average exercise price (in dollars per share)	$ 9.46
Range 02
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	10.65
Exercise price range, upper range limit (in dollars per share)	$ 10.65
Number of outstanding options (in shares) | shares	3
Outstanding options, weighted average remaining contractual term	3 years 25 days
Outstanding options, weighted average exercise price (in dollars per share)	$ 10.65
Number of exercisable options (in shares) | shares	3
Exercisable options, weighted average exercise price (in dollars per share)	$ 10.65
Range 03
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	10.76
Exercise price range, upper range limit (in dollars per share)	$ 10.76
Number of outstanding options (in shares) | shares	1
Outstanding options, weighted average remaining contractual term	1 hour
Outstanding options, weighted average exercise price (in dollars per share)	$ 10.76
Number of exercisable options (in shares) | shares	1
Exercisable options, weighted average exercise price (in dollars per share)	$ 10.76
Range 04
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	20.29
Exercise price range, upper range limit (in dollars per share)	$ 20.29
Number of outstanding options (in shares) | shares	71
Outstanding options, weighted average remaining contractual term	5 years
Outstanding options, weighted average exercise price (in dollars per share)	$ 20.29
Number of exercisable options (in shares) | shares	71
Exercisable options, weighted average exercise price (in dollars per share)	$ 20.29
Range 05
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	20.36
Exercise price range, upper range limit (in dollars per share)	$ 20.36
Number of outstanding options (in shares) | shares	2
Outstanding options, weighted average remaining contractual term	4 years 10 months 17 days
Outstanding options, weighted average exercise price (in dollars per share)	$ 20.36
Number of exercisable options (in shares) | shares	2
Exercisable options, weighted average exercise price (in dollars per share)	$ 20.36
Range 06
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	22.20
Exercise price range, upper range limit (in dollars per share)	$ 22.20
Number of outstanding options (in shares) | shares	74
Outstanding options, weighted average remaining contractual term	5 years 2 months 23 days
Outstanding options, weighted average exercise price (in dollars per share)	$ 22.20
Number of exercisable options (in shares) | shares	74
Exercisable options, weighted average exercise price (in dollars per share)	$ 22.20
Range 07
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	22.75
Exercise price range, upper range limit (in dollars per share)	$ 22.75
Number of outstanding options (in shares) | shares	436
Outstanding options, weighted average remaining contractual term	5 years 7 months 9 days
Outstanding options, weighted average exercise price (in dollars per share)	$ 22.75
Number of exercisable options (in shares) | shares	436
Exercisable options, weighted average exercise price (in dollars per share)	$ 22.75
Range 08
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	23.51
Exercise price range, upper range limit (in dollars per share)	$ 23.51
Number of outstanding options (in shares) | shares	97
Outstanding options, weighted average remaining contractual term	6 years 18 days
Outstanding options, weighted average exercise price (in dollars per share)	$ 23.51
Number of exercisable options (in shares) | shares	97
Exercisable options, weighted average exercise price (in dollars per share)	$ 23.51
Range 09
Defined Contribution Plan Disclosure [Line Items]
Exercise price range, lower range limit (in dollars per share)	24.07
Exercise price range, upper range limit (in dollars per share)	$ 24.07
Number of outstanding options (in shares) | shares	7
Outstanding options, weighted average remaining contractual term	5 years 8 months 15 days
Outstanding options, weighted average exercise price (in dollars per share)	$ 24.07
Number of exercisable options (in shares) | shares	7
Exercisable options, weighted average exercise price (in dollars per share)	$ 24.07