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Employee Benefit Plans (Stock Options Outstanding And Exercisable) (Details) $ / shares in Units, $ in Thousands | 6 Months Ended
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Jun. 30, 2018 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
No. of Options Outstanding (in shares) | shares | 62,458
Aggregate Intrinsic Value (in thousands) | $ | $ 1,536
No. of Options Currently Exercisable (in shares) | shares | 7,183
Aggregate Intrinsic Value of Options Currently Exercisable (in thousands) | $ | $ 221
$30.00 - $34.99 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
No. of Options Outstanding (in shares) | shares | 500
Weighted-Average Exercise Price (in dollars per share) | $ 30.38
Weighted-Average Remaining Contractual Life (Years) | 5 months
Aggregate Intrinsic Value (in thousands) | $ | $ 22
No. of Options Currently Exercisable (in shares) | shares | 500
Weighted-Average Exercise Price of Options Currently Exercisable (in dollars per share) | $ 30.38
Weighted-Average Remaining Contractual Life (Years) | 5 months
Aggregate Intrinsic Value of Options Currently Exercisable (in thousands) | $ | $ 22
$30.00 - $34.99 | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 30
$30.00 - $34.99 | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 34.99
35.00 - 39.99 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
No. of Options Outstanding (in shares) | shares | 38
Weighted-Average Exercise Price (in dollars per share) | $ 37.74
Weighted-Average Remaining Contractual Life (Years) | 4 years 8 months
Aggregate Intrinsic Value (in thousands) | $ | $ 1
No. of Options Currently Exercisable (in shares) | shares | 38
Weighted-Average Exercise Price of Options Currently Exercisable (in dollars per share) | $ 37.74
Weighted-Average Remaining Contractual Life (Years) | 4 years 8 months
Aggregate Intrinsic Value of Options Currently Exercisable (in thousands) | $ | $ 1
35.00 - 39.99 | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 35
35.00 - 39.99 | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 39.99
40.00 - 44.99 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
No. of Options Outstanding (in shares) | shares | 32,684
Weighted-Average Exercise Price (in dollars per share) | $ 43.91
Weighted-Average Remaining Contractual Life (Years) | 7 years 2 months
Aggregate Intrinsic Value (in thousands) | $ | $ 1,024
No. of Options Currently Exercisable (in shares) | shares | 3,683
Weighted-Average Exercise Price of Options Currently Exercisable (in dollars per share) | $ 44.43
Weighted-Average Remaining Contractual Life (Years) | 5 years 8 months
Aggregate Intrinsic Value of Options Currently Exercisable (in thousands) | $ | $ 113
40.00 - 44.99 | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 40
40.00 - 44.99 | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 44.99
45.00 - 49.99 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
No. of Options Outstanding (in shares) | shares | 11,605
Weighted-Average Exercise Price (in dollars per share) | $ 46.61
Weighted-Average Remaining Contractual Life (Years) | 6 years 8 months
Aggregate Intrinsic Value (in thousands) | $ | $ 332
No. of Options Currently Exercisable (in shares) | shares | 2,962
Weighted-Average Exercise Price of Options Currently Exercisable (in dollars per share) | $ 46.61
Weighted-Average Remaining Contractual Life (Years) | 6 years 8 months
Aggregate Intrinsic Value of Options Currently Exercisable (in thousands) | $ | $ 85
45.00 - 49.99 | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 45
45.00 - 49.99 | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 49.99
65.00 - 70.00 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
No. of Options Outstanding (in shares) | shares | 17,631
Weighted-Average Exercise Price (in dollars per share) | $ 66.32
Weighted-Average Remaining Contractual Life (Years) | 8 years 8 months
Aggregate Intrinsic Value (in thousands) | $ | $ 157
No. of Options Currently Exercisable (in shares) | shares | 0
Weighted-Average Exercise Price of Options Currently Exercisable (in dollars per share) | $ 0.00
Aggregate Intrinsic Value of Options Currently Exercisable (in thousands) | $ | $ 0
65.00 - 70.00 | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 65
65.00 - 70.00 | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ranges Of Exercise Prices (in dollars per share) | $ 70

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