Quarterly Operating Results (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Quarterly Results Of Operations [Line Items] | |||||||||||
Total revenues | $ 302,830 | $ 303,800 | $ 290,916 | $ 302,486 | $ 244,097 | $ 260,401 | $ 246,816 | $ 262,228 | $ 1,200,032 | $ 1,013,542 | $ 973,492 |
Total expenses | 233,603 | 222,151 | 219,771 | 219,696 | 184,406 | 187,709 | 185,348 | 185,558 | 895,221 | 743,021 | 707,394 |
Income before income taxes | 69,227 | 81,649 | 71,145 | 82,790 | 59,691 | 72,692 | 61,468 | 76,670 | 304,811 | 270,521 | 266,098 |
Net income | $ 42,637 | $ 49,504 | $ 42,471 | $ 49,433 | $ 36,494 | $ 44,173 | $ 37,035 | $ 46,293 | $ 184,045 | $ 163,995 | $ 161,752 |
Net income per share: | |||||||||||
Basic | $ 0.30 | $ 0.34 | $ 0.30 | $ 0.34 | $ 0.25 | $ 0.31 | $ 0.26 | $ 0.32 | $ 1.28 | $ 1.15 | $ 1.14 |
Diluted | $ 0.29 | $ 0.34 | $ 0.29 | $ 0.34 | $ 0.25 | $ 0.30 | $ 0.26 | $ 0.32 | $ 1.26 | $ 1.13 | $ 1.12 |
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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