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Quarterly Financial Data (Unaudited) (Narrative) (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | 3 Months Ended | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
|
Dec. 31, 2012
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Dec. 31, 2011
|
Dec. 31, 2013
Amortization Of Retaintion Loans [Member]
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Sep. 30, 2013
Amortization Of Retaintion Loans [Member]
|
Jun. 30, 2013
Amortization Of Retaintion Loans [Member]
|
Mar. 31, 2013
Amortization Of Retaintion Loans [Member]
|
Dec. 31, 2012
Amortization Of Retaintion Loans [Member]
|
Sep. 30, 2012
Amortization Of Retaintion Loans [Member]
|
Jun. 30, 2012
Amortization Of Retaintion Loans [Member]
|
Mar. 31, 2012
Amortization Of Retaintion Loans [Member]
|
Dec. 31, 2013
Non Cash Compensation [Member]
|
Sep. 30, 2013
Non Cash Compensation [Member]
|
Jun. 30, 2013
Non Cash Compensation [Member]
|
Mar. 31, 2013
Non Cash Compensation [Member]
|
Dec. 31, 2012
Non Cash Compensation [Member]
|
Sep. 30, 2012
Non Cash Compensation [Member]
|
Jun. 30, 2012
Non Cash Compensation [Member]
|
Mar. 31, 2012
Non Cash Compensation [Member]
|
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| Schedule of Quarterly Financial Information [Line Items] | |||||||||||||||||||
| Expenses | $ 790,591 | $ 672,114 | $ 285,902 | $ 1,821 | $ 1,690 | $ 1,841 | $ 1,808 | $ 2,051 | $ 1,712 | $ 1,791 | $ 1,792 | $ 2,326 | $ 1,647 | $ 1,380 | $ 1,413 | $ 1,099 | $ 1,054 | $ 1,227 | $ 1,364 |