Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
State	$ 519	$ 765	$ 542
Foreign	2,572	199	465
Current tax	3,091	964	1,007
Deferred:
Foreign	(457)	2,243	340
Deferred tax	(457)	2,243	340
Income tax provision	2,634	3,207	1,347
Reconciliation of effective tax rate and the U.S. Federal statutory income tax rate
Taxes at statutory U.S. federal income tax rate (as a percent)	35.00%	35.00%	35.00%
Dividends paid deduction (as a percent)	(35.00%)	(35.00%)	(35.00%)
State, local, and foreign income taxes, net of federal tax benefit (as a percent)	(1.71%)	(4.20%)	1.22%
Effective tax rate (as a percent)	(1.71%)	(4.20%)	1.22%
Deferred tax assets	2,601	2,329
Deferred tax liabilities	3,287	3,643
Valuation allowance	$ 511	$ 598