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Condensed Consolidated Statement of Stockholders' Equity (USD $) In Thousands | Total | Common Class A [Member] | Common Class B [Member] | Treasury Stock [Member] Common Class A [Member] | Paid-In Capital [Member] | Retained Earnings / (Accumulated Deficit) [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2012 |  | $ 526,545 | $ 614 | $ 121 | $ (331,599) | $ 669,324 | $ 208,048 | $ (19,963)
Beginning balance, shares at Dec. 31, 2012 |  |  | 61,352 | 12,029 | (20,142) |  |  |
Shares awarded under stock compensation plans, shares |  |  | 162 |  |  |  |  |
Shares awarded under stock compensation plans |  | 1,066 | 1 |  |  | 1,065 |  |
Purchases of treasury stock |  | (14,480) |  |  | (14,480) |  |  |
Purchases of treasury stock, shares |  |  |  |  | (641) |  |  |
Income tax benefit associated with stock compensation plans |  | 612 |  |  |  | 612 |  |
Fair value of interest rate swap agreements, net of tax expense of $5,083 |  | 8,294 |  |  |  |  |  | 8,294
Restricted stock amortization |  | 5,559 |  |  |  | 5,559 |  |
Other | [1] | 6,577 | 21 |  |  | 6,577 |  |
Net income (loss) |  | 53,535 |  |  |  |  | 53,535 |
Dividends ($0.075 per share) |  | (3,978) |  |  |  |  | (3,978) |
Ending balance at Sep. 30, 2013 |  | $ 583,730 | $ 615 | $ 121 | $ (346,079) | $ 683,137 | $ 257,605 | $ (11,669)
Ending balance, shares at Sep. 30, 2013 |  |  | 61,535 | 12,029 | (20,783) |  |  |
[1] | (1) Paid-in capital amount represents a tax benefit related to the 5.0% Convertible Senior Notes due 2029, which were extinguished during the third quarter ended September 30, 2012.

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