Defined Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2012

Compensation and Retirement Disclosure [Abstract]

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

The following amounts contained in the following tables relate to the above plans in aggregate as of December 31, 2012 and 2011 and for the years ended December 31, 2012, 2011, and 2010:

	As of December 31,
	2012			2011
	(dollars in thousands)
Projected benefit obligation
Benefit obligation at beginning of year	$	5,591		$	6,311
Service cost	53			50
Interest cost	216			264
Actuarial loss (gain)	(50		)	(55		)
Curtailments	(98		)	—
Lump sum settlement	(1,269		)	(991		)
Effect of change in currency conversion	(7		)	12
Benefit obligation at end of year	$	4,436		$	5,591
Change in plan assets
Fair value of plan assets at beginning of year	$	5,639		$	5,791
Actual return on plan assets	676			206
Employer contributions	—			633
Benefits paid	(1,085		)	(991		)
Fair value of plan assets at the end of year	$	5,230		$	5,639
Funded balance at end of year	$	794		$	48
Amounts recognized in the consolidated statement of financial condition
Asset	$	794		$	48
Accumulated benefit obligation	$	4,436		$	5,533

Schedule of Net Periodic Benefit Cost

	Year Ended December 31,
	2012			2011			2010
	(dollars in thousands)
Components of net periodic benefit cost included in employee compensation and benefits
Service cost	$	53		$	50		$	54
Interest cost	216			264			317
Expected return on plan assets	(235		)	(276		)	(294		)
Amortization of (loss) / gain	—			—			—
Amortization of prior service cost	20			21			21
Effect of curtailment	(59		)	—			(10		)
Effect of special termination benefits	6			—			—
Effect of settlement	(95		)	(29		)	(5		)
Net periodic benefit cost	$	(94	)	$	30		$	83
Other changes in plan assets and benefit obligations recognized in other comprehensive loss
Net loss (gain)	$	(557	)	$	(33	)	$	(234	)
Effect of curtailment	59			—			10
Effect of settlement	98			31			6
Amortization of loss / (gain)	—			—			—
Amortization of prior service cost	(23		)	(23		)	(23		)
Total recognized in other comprehensive loss	$	(423	)	$	(25	)	$	(241	)
Total recognized in net periodic benefit cost and other comprehensive loss	$	(517	)	$	5		$	(158	)
Amounts recognized in accumulated other comprehensive loss
Net gain (loss)	$	479		$	116		$	113
Prior service cost	(381		)	(441		)	(463		)
Effect of change in currency conversion	—			—			—
Total recognized in accumulated other comprehensive loss	$	98		$	(325	)	$	(350	)
Estimated amounts to be amortized from accumulated other comprehensive loss into net periodic benefit cost over the next fiscal year
Prior service cost	$	19		$	19		$	3
Net gain (loss)	$	—		$	—		$	—

Schedule of Allocation of Plan Assets [Table Text Block]

The composition of plan assets by asset category for the Cash Balance Plan are set forth below:

	As of December 31,
	2012		2011
	(dollars in thousands)
Ramius Multi-Strategy Fund Ltd(a)	$	513	$	506
Ramius Global Credit Fund Ltd(b)	1,304		1,040
External Mutual Funds—Total return(c)	1,358		1,785
External Mutual Funds—Real Return(d)	1,019		1,079
External Mutual Funds—Conservative(e)	1,036		1,229
	$	5,230	$	5,639

Schedule of Expected Benefit Payments [Table Text Block]

The following benefit payments, which reflect future service, as appropriate, are expected to be paid:

	(dollars in thousands)
2013	$	2,016
2014	360
2015	2,260
2016	274
2017	2,111
2018 - 2021	4,546
	$	11,567