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Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2016
Other Comprehensive Income (Loss) [Abstract] |
Schedule Of Tax Effects Of The Components Of Other Comprehensive Income (Loss) | The tax effects of the components of other comprehensive income (loss) for the three months ended September 30, 2016 and 2015 are as follows: ﻿
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﻿ | Three Months Ended |  | Three Months Ended
﻿ | September 30, 2016 |  | September 30, 2015
﻿(in thousands) | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net-of-Tax Amount |  | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net-of-Tax Amount
﻿Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Defined benefit pension plan adjustments | $ | 427 |  | $ | (179) |  | $ | 248 |  | $ | — |  | $ | — |  | $ | —
﻿Foreign currency translation adjustment |  | (708) |  |  | 297 |  |  | (411) |  |  | (1,792) |  |  | 417 |  |  | (1,375)
﻿Unrealized loss in fair value of investments |  | (145) |  |  | 66 |  |  | (79) |  |  | (2) |  |  | — |  |  | (2)
﻿Unrealized gain (loss) in fair value of interest rate swap |  | — |  |  | — |  |  | — |  |  | 77 |  |  | (30) |  |  | 47
﻿Total other comprehensive income (loss) | $ | (426) |  | $ | 184 |  | $ | (242) |  | $ | (1,717) |  | $ | 387 |  | $ | (1,330)
﻿ The tax effects of the components of other comprehensive income (loss) for the nine months ended September 30, 2016 and 2015 are as follows: ﻿
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﻿ | Nine Months Ended |  | Nine Months Ended
﻿ | September 30, 2016 |  | September 30, 2015
﻿(in thousands) | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net-of-Tax Amount |  | Before-Tax Amount |  | Tax (Expense) Benefit |  | Net-of-Tax Amount
﻿Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Defined benefit pension plan adjustments | $ | 1,280 |  | $ | (461) |  | $ | 819 |  | $ | — |  | $ | — |  | $ | —
﻿Foreign currency translation adjustment |  | 500 |  |  | (239) |  |  | 261 |  |  | (4,633) |  |  | 1,524 |  |  | (3,109)
﻿Unrealized gain (loss) in fair value of investments |  | (403) |  |  | 179 |  |  | (224) |  |  | (140) |  |  | 54 |  |  | (86)
﻿Unrealized gain (loss) in fair value of interest rate swap |  | (45) |  |  | 21 |  |  | (24) |  |  | 250 |  |  | (98) |  |  | 152
﻿Total other comprehensive income (loss) | $ | 1,332 |  | $ | (500) |  | $ | 832 |  | $ | (4,523) |  | $ | 1,480 |  | $ | (3,043)
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Schedule Of Changes In AOCI Balances By Component (After-Tax) | ﻿ ﻿
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﻿ | For the Three Months Ended September 30, 2016
﻿(in thousands) | Defined Benefit Pension Plan |  | Foreign Currency Translation |  | Unrealized Gain (Loss) in Fair Value of Investments, Net |  | Unrealized Gain (Loss) in Fair Value of Interest Rate Swap, Net |  | Accumulated Other Comprehensive Income (Loss), Net
﻿Balance as of June 30, 2016 | $ | (37,671) |  | $ | (3,931) |  | $ | 511 |  | $ | — |  | $ | (41,091)
﻿Other comprehensive loss before reclassifications |  | — |  |  | (411) |  |  | (79) |  |  | — |  |  | (490)
﻿Amounts reclassified from AOCI |  | 248 |  |  | — |  |  | — |  |  | — |  |  | 248
﻿Total other comprehensive income (loss) |  | 248 |  |  | (411) |  |  | (79) |  |  | — |  |  | (242)
﻿Balance as of September 30, 2016 | $ | (37,423) |  | $ | (4,342) |  | $ | 432 |  | $ | — |  | $ | (41,333)
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﻿ | For the Nine Months Ended September 30, 2016
﻿(in thousands) | Defined Benefit Pension Plan |  | Foreign Currency Translation |  | Unrealized Gain (Loss) in Fair Value of Investments, Net |  | Unrealized Gain (Loss) in Fair Value of Interest Rate Swap, Net |  | Accumulated Other Comprehensive Income (Loss), Net
﻿Balance as of December 31, 2015 | $ | (38,242) |  | $ | (4,603) |  | $ | 656 |  | $ | 24 |  | $ | (42,165)
﻿Other comprehensive loss before reclassifications |  | — |  |  | 261 |  |  | (224) |  |  | (24) |  |  | 13
﻿Amounts reclassified from AOCI |  | 819 |  |  | — |  |  | — |  |  | — |  |  | 819
﻿Total other comprehensive income (loss) |  | 819 |  |  | 261 |  |  | (224) |  |  | (24) |  |  | 832
﻿Balance as of September 30, 2016 | $ | (37,423) |  | $ | (4,342) |  | $ | 432 |  | $ | — |  | $ | (41,333)
﻿ The following tables present the changes in AOCI balances by component (after tax) for the three and nine months ended September 30, 2015: ﻿
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﻿ | For the Three Months Ended September 30, 2015
﻿(in thousands) | Defined Benefit Pension Plan |  | Foreign Currency Translation |  | Unrealized Loss in Fair Value of Investments, Net |  | Unrealized Gain in Fair Value of Interest Rate Swap, Net |  | Accumulated Other Comprehensive Loss, Net
﻿Balance as of June 30, 2015 | $ | (40,268) |  | $ | (3,123) |  | $ | (194) |  | $ | 254 |  | $ | (43,331)
﻿Other comprehensive income (loss) |  | — |  |  | (1,375) |  |  | (2) |  |  | 47 |  |  | (1,330)
﻿Balance as of September 30, 2015 | $ | (40,268) |  | $ | (4,498) |  | $ | (196) |  | $ | 301 |  | $ | (44,661)
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﻿ | For the Nine Months Ended September 30, 2015
﻿(in thousands) | Defined Benefit Pension Plan |  | Foreign Currency Translation |  | Unrealized Loss in Fair Value of Investments, Net |  | Unrealized Gain in Fair Value of Interest Rate Swap, Net |  | Accumulated Other Comprehensive Loss, Net
﻿Balance as of December 31, 2014 | $ | (40,268) |  | $ | (1,389) |  | $ | (110) |  | $ | 149 |  | $ | (41,618)
﻿Other comprehensive income (loss) |  | — |  |  | (3,109) |  |  | (86) |  |  | 152 |  |  | (3,043)
﻿Balance as of September 30, 2015 |  | (40,268) |  |  | (4,498) |  |  | (196) |  |  | 301 |  |  | (44,661)
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Schedule Of Items Reclassified Out Of AOCI And The Corresponding Location And Impact On The Condensed Consolidated Statement Of Operations |
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﻿ |  | Location in |  | Three Months Ended |  | Nine Months Ended
﻿ |  | Condensed Consolidated |  | September 30, |  | September 30,
﻿(in thousands) |  | Statements of Earnings |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Defined benefit pension plan adjustments |  | Various accounts(a) |  | $ | 427 |  | $ | — |  | $ | 1,280 |  | $ | —
﻿Income tax benefit |  | Provision for income taxes |  |  | (179) |  |  | — |  |  | (461) |  |  | —
﻿Net of tax |  |  |  | $ | 248 |  | $ | — |  | $ | 819 |  | $ | —
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| (a) |  | Defined benefit pension plan adjustments were reclassified primarily to cost of operations and general and administrative expenses.

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