Related-Party Transactions - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | 9 Months Ended | 1 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2013
Component
|
Sep. 30, 2012
|
Sep. 30, 2013
Component
|
Sep. 30, 2012
|
Dec. 31, 2012
|
Sep. 30, 2013
Dividend Paid [Member]
|
Sep. 30, 2012
Dividend Paid [Member]
|
Oct. 31, 2013
Dividend Paid [Member]
Subsequent Event [Member]
|
Sep. 30, 2013
Dividend Declared [Member]
|
Sep. 30, 2012
Dividend Declared [Member]
|
Sep. 30, 2013
Line of credit [Member]
Payment guarantee [Member]
|
Dec. 31, 2012
Line of credit [Member]
Payment guarantee [Member]
|
Sep. 30, 2013
Term loan [Member]
Payment guarantee [Member]
|
Dec. 31, 2012
Term loan [Member]
Payment guarantee [Member]
|
Sep. 30, 2013
MMC [Member]
|
Sep. 30, 2012
MMC [Member]
|
Sep. 30, 2013
MMC [Member]
|
Sep. 30, 2012
MMC [Member]
|
|
Related Party Transaction [Line Items] | ||||||||||||||||||
Line of credit maturity date | Sep. 26, 2015 | |||||||||||||||||
Term loan maturity date | Jun. 01, 2019 | |||||||||||||||||
Number of components | 2 | 2 | ||||||||||||||||
Guarantee obligation, maximum amount of future payments | $ 56,900 | $ 56,900 | $ 49,700 | $ 39,400 | $ 30,700 | $ 17,500 | $ 19,000 | |||||||||||
Preferred stock dividends | 31,181 | 15,654 | 6,500 | 6,500 | 0 | |||||||||||||
Payment under share service agreement | 493 | 486 | 896 | 834 | ||||||||||||||
Insurance premiums incurred by MMC | 1,018 | 1,090 | 2,823 | 2,661 | ||||||||||||||
General and administrative expenses incurred by MMC | 112 | 112 | 501 | 470 | ||||||||||||||
Interest income earned from MMC | 0 | 35 | 74 | 95 | ||||||||||||||
Aggregate principal amount outstanding | 384 | 384 | 1,157 | |||||||||||||||
Finance and brokerage services from transactions with MMC | 0 | 394 | 382 | 1,013 | ||||||||||||||
Commission expenses for transactions with MMC | 0 | 212 | 238 | 591 | ||||||||||||||
Rent expenses | $ 109 | $ 69 | $ 289 | $ 208 | ||||||||||||||
Lease expires date | Apr. 30, 2015 |