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v3.3.1.900

Shareholders' Equity (Schedule of Activity in Shareholders' Equity) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Balance | $ 513,568 |  |
Balance, shares | 31,900,000 | 31,800,000 |
Net income | $ 57,265 | $ 41,749 | $ 17,658
Settlement of certain pension plan liabilities | 103 | 5,167 |
Balance | $ 502,553 | $ 513,568 |
Balance, shares | 32,000,000 | 31,900,000 | 31,800,000
Common Class B [Member] |  |  |
Balance, shares | 3,235,048 |  |
Balance, shares | 3,235,048 | 3,235,048 |
Common Stock [Member] | Common Class A [Member] |  |  |
Balance | $ 37 | $ 37 | $ 37
Balance, shares | 37,085,000 | 36,996,000 | 36,642,000
Net income |  |  |
Compensation and benefits paid or payable in shares |  |  |
Compensation and benefits paid or payable in shares, shares | 55,000 | 47,000 | 75,000
Conversion of Class B shares to Class A shares |  |  |
Conversion of Class B shares to Class A shares, shares |  | 1,000 |
Initial equity related to Noncontrolling interest in ASC |  |  |
Changes in equity related to Noncontrolling interest in ASC |  |  |
Options exercised |  |  |
Options exercised, shares | 99,000 | 41,000 | 279,000
Shares issued to Directors' |  |  |
Shares issued to Directors', shares |  |  |
Dividends declared |  |  |
Cumulative translation adjustments |  |  |
Pension and postretirement liability adjustments |  |  |
Derivative valuation adjustment |  |  |
Balance | $ 37 | $ 37 | $ 37
Balance, shares | 37,239,000 | 37,085,000 | 36,996,000
Common Stock [Member] | Common Class B [Member] |  |  |
Balance | $ 3 | $ 3 | $ 3
Balance, shares | 3,235,000 | 3,236,000 | 3,236,000
Net income |  |  |
Compensation and benefits paid or payable in shares |  |  |
Compensation and benefits paid or payable in shares, shares |  |  |
Conversion of Class B shares to Class A shares |  |  |
Conversion of Class B shares to Class A shares, shares |  | (1,000) |
Initial equity related to Noncontrolling interest in ASC |  |  |
Changes in equity related to Noncontrolling interest in ASC |  |  |
Options exercised |  |  |
Options exercised, shares |  |  |
Shares issued to Directors' |  |  |
Shares issued to Directors', shares |  |  |
Dividends declared |  |  |
Cumulative translation adjustments |  |  |
Pension and postretirement liability adjustments |  |  |
Derivative valuation adjustment |  |  |
Balance | $ 3 | $ 3 | $ 3
Balance, shares | 3,235,000 | 3,235,000 | 3,236,000
Additional Paid-in Capital [Member] |  |  |
Balance | $ 418,972 | $ 416,728 | $ 395,381
Net income |  |  |
Compensation and benefits paid or payable in shares | $ 1,540 | $ 1,234 | $ (902)
Conversion of Class B shares to Class A shares |  |  |
Initial equity related to Noncontrolling interest in ASC |  |  | 15,535
Changes in equity related to Noncontrolling interest in ASC |  | $ (24) |
Options exercised | 2,520 | 974 | 6,670
Shares issued to Directors' | $ 76 | $ 60 | $ 44
Dividends declared |  |  |
Cumulative translation adjustments |  |  |
Pension and postretirement liability adjustments |  |  |
Derivative valuation adjustment |  |  |
Balance | $ 423,108 | $ 418,972 | $ 416,728
Retained Earnings [Member] |  |  |
Balance | 456,105 | 434,598 | 435,775
Net income | $ 57,279 | $ 41,569 | $ 17,517
Compensation and benefits paid or payable in shares |  |  |
Conversion of Class B shares to Class A shares |  |  |
Initial equity related to Noncontrolling interest in ASC |  |  |
Changes in equity related to Noncontrolling interest in ASC |  |  |
Options exercised |  |  |
Shares issued to Directors' |  |  |
Dividends declared | $ (21,434) | $ (20,062) | $ (18,694)
Cumulative translation adjustments |  |  |
Pension and postretirement liability adjustments |  |  |
Derivative valuation adjustment |  |  |
Balance | $ 491,950 | $ 456,105 | $ 434,598
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |
Balance | $ (107,767) | $ (49,498) | $ (80,021)
Net income |  |  |
Compensation and benefits paid or payable in shares |  |  |
Conversion of Class B shares to Class A shares |  |  |
Initial equity related to Noncontrolling interest in ASC |  |  |
Changes in equity related to Noncontrolling interest in ASC |  |  |
Options exercised |  |  |
Shares issued to Directors' |  |  |
Dividends declared |  |  |
Cumulative translation adjustments | $ (53,415) | $ (55,102) | $ 7,521
Pension and postretirement liability adjustments | 2,941 | (3,283) | 21,101
Derivative valuation adjustment | (603) | 116 | 1,901
Balance | (158,844) | (107,767) | (49,498)
Treasury Stock [Member] |  |  |
Balance | $ (257,481) | $ (257,571) | $ (257,664)
Balance, shares | 8,459,000 | 8,464,000 | 8,468,000
Net income |  |  |
Compensation and benefits paid or payable in shares |  |  |
Compensation and benefits paid or payable in shares, shares |  |  |
Conversion of Class B shares to Class A shares |  |  |
Conversion of Class B shares to Class A shares, shares |  |  |
Initial equity related to Noncontrolling interest in ASC |  |  |
Changes in equity related to Noncontrolling interest in ASC |  |  |
Options exercised |  |  |
Options exercised, shares |  |  |
Shares issued to Directors' | $ 90 | $ 90 | $ 93
Shares issued to Directors', shares | (4,000) | (5,000) | (4,000)
Dividends declared |  |  |
Cumulative translation adjustments |  |  |
Pension and postretirement liability adjustments |  |  |
Derivative valuation adjustment |  |  |
Balance | $ (257,391) | $ (257,481) | $ (257,571)
Balance, shares | 8,455,000 | 8,459,000 | 8,464,000
Noncontrolling Interest [Member] |  |  |
Balance | $ 3,699 | $ 3,482 |
Net income | $ (14) | $ 180 | $ 141
Compensation and benefits paid or payable in shares |  |  |
Conversion of Class B shares to Class A shares |  |  |
Initial equity related to Noncontrolling interest in ASC |  |  | $ 3,341
Changes in equity related to Noncontrolling interest in ASC |  | $ 38 |
Options exercised |  |  |
Shares issued to Directors' |  |  |
Dividends declared |  |  |
Cumulative translation adjustments | $ 5 | $ (1) |
Pension and postretirement liability adjustments |  |  |
Derivative valuation adjustment |  |  |
Balance | $ 3,690 | $ 3,699 | $ 3,482

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