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Notes Payable (Trust Preferred Securities) (Narrative) (Details)
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0 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Feb. 05, 2007
USD ($)
|
Dec. 31, 2012
USD ($)
|
Dec. 31, 2011
USD ($)
|
Dec. 31, 2010
USD ($)
|
Apr. 30, 2009
USD ($)
|
Mar. 31, 2009
USD ($)
|
May 01, 2012
Trust Preferred Securities [Member]
|
Apr. 30, 2009
Trust Preferred Securities [Member]
USD ($)
|
Dec. 31, 2008
Trust Preferred Securities [Member]
USD ($)
|
Feb. 05, 2007
Trust Preferred Securities [Member]
|
Dec. 31, 2011
Trust Preferred Securities [Member]
USD ($)
|
Dec. 31, 2012
Trust Preferred Securities [Member]
USD ($)
|
Dec. 31, 2009
Trust Preferred Securities [Member]
USD ($)
|
Mar. 31, 2009
Trust Preferred Securities [Member]
USD ($)
|
Feb. 05, 2007
New Zealand [Member]
USD ($)
|
Feb. 05, 2007
New Zealand [Member]
NZD
|
Feb. 05, 2007
Australia [Member]
USD ($)
|
Feb. 05, 2007
Australia [Member]
AUD
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| Debt Instrument [Line Items] | ||||||||||||||||||
| Trust preferred securities | $ 51,500,000 | $ 22,900,000 | ||||||||||||||||
| Debt instrument term | 20 years | |||||||||||||||||
| Trust preferred securities issued | 51,500,000 | |||||||||||||||||
| Trust preferred securities issued to third party | 50,000,000 | |||||||||||||||||
| Trust preferred securities issued to parent | 1,500,000 | |||||||||||||||||
| Initial interest rate | 9.22% | |||||||||||||||||
| Period of initial interest rate | 5 years | |||||||||||||||||
| LIBOR period | 3 months | |||||||||||||||||
| Spread over LIBOR | 4.00% | |||||||||||||||||
| Initial period of payoff restriction | 5 years | |||||||||||||||||
| Percentage of principal that may be paid without penalty after initial restriction period | 100.00% | |||||||||||||||||
| Period of waiver on all financial covenants | 9 years | |||||||||||||||||
| Financial covenant waiver payment due | 1,600,000 | 270,000 | ||||||||||||||||
| Financial covenant waiver payment | 1,100,000 | 270,000 | ||||||||||||||||
| Net proceeds from private placement | 49,900,000 | |||||||||||||||||
| Investment in common trust securities | 1,500,000 | 838,000 | 838,000 | 838,000 | ||||||||||||||
| Debt retired | 34,400,000 | 50,000,000 | 5,800,000 | 7,400,000 | ||||||||||||||
| Trust preferred dividends paid | 1,900,000 | 2,500,000 | 2,500,000 | |||||||||||||||
| Preferred stock dividends payable | 198,000 | 416,000 | ||||||||||||||||
| Frequency of interest payment | 3 months | |||||||||||||||||
| Extinguishment of debt | 22,900,000 | |||||||||||||||||
| Marketable securities | 11,500,000 | |||||||||||||||||
| Amortization of debt discount | 106,000 | |||||||||||||||||
| Gain on retirement of subordinated debt | 10,700,000 | |||||||||||||||||
| Write-off of deferred loan costs | $ 749,000 | |||||||||||||||||