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Equity And Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2015
Equity And Stock-Based Compensation [Abstract] |
Summary Of Stocks Awarded |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Fair Value |  | Number of Shares |  | Fair Value Per Share
﻿2014 |  | $ | 1,200,000 |  |  | 160,643 |  | $ | 7.47
﻿2013 |  |  | 750,000 |  |  | 125,209 |  |  | 5.99
﻿
Schedule Of Fair Value Of Options, Weighted Average Assumptions |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | 2015 |  | 2014 |  | 2013
﻿Stock option exercise price |  | $ | 13.30 |  | $ | 8.56 |  | $ | 6.19
﻿Risk-free interest rate |  |  | 2.23% |  |  | 2.51% |  |  | 2.25%
﻿Expected dividend yield |  |  | -- |  |  | -- |  |  | --
﻿Expected option life in years |  |  | 4 |  |  | 5 |  |  | 5
﻿Expected volatility |  |  | 31.86% |  |  | 31.33% |  |  | 31.80%
﻿Weighted average fair value |  | $ | 3.82 |  | $ | 2.76 |  | $ | 1.98
﻿
Schedule Of Stock Options Outstanding |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ | Outstanding Stock Options
﻿ | Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Years of Contractual Life |  | Aggregate Intrinsic Value
﻿ | Class A |  | Class B |  | Class A |  | Class B |  | Class A&B |  | Class A&B
﻿Outstanding - January 1, 2013 | 672,350 |  | 185,100 |  | $ | 6.24 |  | $ | 9.90 |  |  |  |  |
﻿Granted | 175,000 |  | -- |  |  | 6.19 |  |  | -- |  |  |  |  |
﻿Exercised | (137,500) |  | -- |  |  | 4.00 |  |  | -- |  |  |  | $ | 133,000
﻿Outstanding - December 31, 2013 | 709,850 |  | 185,100 |  | $ | 6.66 |  | $ | 9.90 |  | 4.70 |  | $ | 938,503
﻿Granted | 80,000 |  | -- |  |  | 8.56 |  |  | -- |  |  |  |  |
﻿Exercised | (157,600) |  | -- |  |  | 6.21 |  |  | -- |  |  |  | $ | 374,022
﻿Expired | (64,000) |  | -- |  |  | 6.83 |  |  | -- |  |  |  |  |
﻿Outstanding - December 31, 2014 | 568,250 |  | 185,100 |  | $ | 6.88 |  | $ | 9.90 |  | 2.40 |  | $ | 4,197,000
﻿Granted | 112,000 |  | -- |  |  | 13.30 |  |  | -- |  |  |  |  |
﻿Exercised | (185,685) |  | (185,100) |  |  | 6.09 |  |  | 9.90 |  |  |  | $ | 327,170
﻿Expired | (8,000) |  | -- |  |  | 6.23 |  |  | -- |  |  |  |  |
﻿Outstanding - December 31, 2015 | 486,565 |  | -- |  | $ | 8.68 |  | $ | -- |  | 2.89 |  | $ | 2,188,011
﻿
Summary Of Vested Stock Options |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ | Vested Stock Options
﻿ | Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Years of Contractual Life |  | Aggregate Intrinsic Value
﻿ | Class A |  | Class B |  | Class A |  |  | Class B |  | Class A&B |  | Class A&B
﻿December 31, 2015 | 256,065 |  | -- |  | $ | 7.64 |  | $ | -- |  | 2.14 |  | $ | 1,401,321
﻿December 31, 2014 | 348,000 |  | 185,100 |  |  | 6.82 |  |  | 9.90 |  | 3.63 |  |  | 2,476,230
﻿December 31, 2013 | 490,350 |  | 185,100 |  |  | 6.85 |  |  | 9.90 |  | 3.11 |  |  | 646,032
﻿
Schedule Of Stocks Repurchased |
﻿ |  |  |  |  |  |  |  |
﻿ |  | Shares Acquired |  | Share Price |  | Total Paid (in thousands)
﻿2015 |  | 240,102 |  | $ | 12.95 |  | $ | 3,109
﻿2014 |  | 432,252 |  |  | 9.42 |  |  | 4,070
﻿Total |  | 672,354 |  | $ | 10.68 |  | $ | 7,178
﻿
Schedule Of Accumulated Other Comprehensive Income |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿(Dollars in thousands) |  | Foreign Currency Items |  | Unrealized Gain (Losses) on Available-for-Sale Investments |  | Accrued Pension Service Costs |  | Total
﻿Balance at January 1, 2015 |  | $ | 31,084 |  | $ | 10 |  | $ | (3,055) |  | $ | 28,039
﻿Net current-period other comprehensive income |  |  | (16,442) |  |  | 2 |  |  | 207 |  |  | (16,233)
﻿Balance at December 31, 2015 |  | $ | 14,642 |  | $ | 12 |  | $ | (2,848) |  | $ | 11,806
﻿

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