|
Condensed Consolidated Statements of Shareholders' Equity (USD $)
In Thousands, unless otherwise specified |
Total
|
Preferred Stock [Member]
|
Common Stock [Member]
|
Treasury Stock [Member]
|
Additional Paid-in Capital [Member]
|
Retained Earnings [Member]
|
Accumulated Other Comprehensive Income (Loss) [Member]
|
Parent [Member]
|
|---|---|---|---|---|---|---|---|---|
| Balance at Dec. 31, 2011 | $ 33,293 | $ 178 | $ (1,743) | $ 169,138 | $ 35,097 | $ 3,602 | $ 239,565 | |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||
| Net income | 22,881 | 0 | 0 | 0 | 0 | 22,881 | 0 | 22,881 |
| Total comprehensive income | 28,667 | 0 | 0 | 0 | 0 | 0 | 5,786 | 5,786 |
| Cash dividends paid on common shares, $0.1575 per share | 0 | 0 | 0 | 0 | (2,813) | 0 | (2,813) | |
| Cash dividends paid on preferred stock | 0 | 0 | 0 | 0 | (1,312) | 0 | (1,312) | |
| Preferred stock accretion of discount | 621 | 0 | 0 | 0 | (621) | 0 | 0 | |
| Issuance under equity compensation plans, net | 0 | 2 | 0 | 1,530 | 0 | 0 | 1,532 | |
| Stock Issued During Period, Value, Conversion of Convertible Securities | 0 | |||||||
| Share-based compensation | 0 | 0 | 0 | 1,791 | 0 | 0 | 1,791 | |
| Excess tax benefit related to equity compensation plans | 0 | 0 | 0 | 86 | 0 | 0 | 86 | |
| Balance at Sep. 30, 2012 | 33,914 | 180 | (1,743) | 172,545 | 53,232 | 9,388 | 267,516 | |
| Balance at Dec. 31, 2012 | 235,745 | 0 | 181 | (1,743) | 173,299 | 56,218 | 7,790 | 235,745 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||
| Net income | 29,483 | 0 | 0 | 0 | 0 | 29,483 | 0 | 29,483 |
| Total comprehensive income | 19,712 | 0 | 0 | 0 | 0 | 0 | (9,771) | (9,771) |
| Cash dividends paid on common shares, $0.1575 per share | 0 | 0 | 0 | 0 | (2,924) | 0 | (2,924) | |
| Repurchase of common stock warrants | 0 | 0 | 0 | (1,006) | 0 | 0 | (1,006) | |
| Issuance under equity compensation plans, net | 0 | 1 | 0 | 2,550 | 0 | 0 | 2,551 | |
| Stock Issued During Period, Value, Conversion of Convertible Securities | 20,443 | 0 | 12 | 0 | 20,431 | 0 | 0 | 20,443 |
| Share-based compensation | 0 | 0 | 0 | 3,136 | 0 | 0 | 3,136 | |
| Excess tax benefit related to equity compensation plans | 0 | 0 | 0 | 83 | 0 | 0 | 83 | |
| Balance at Sep. 30, 2013 | $ 277,740 | $ 0 | $ 194 | $ (1,743) | $ 198,493 | $ 82,777 | $ (1,981) | $ 277,740 |