Income Taxes - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Income tax provision, at statutory federal rate	34.00%	34.00%	34.00%
State and local income taxes, net of federal income taxes effect	4.00%	3.00%	2.00%
Permanent differences	(4.00%)	(1.00%)	(1.00%)
Foreign taxes at rates different than domestic rates	(1.00%)	(3.00%)	(5.00%)
Expired capital loss carryforwards	(880.00%)			0.00%	0.00%
Change in valuation allowance	775.00%	(47.00%)	(28.00%)
Change in reserve for uncertain tax positions	0.00%	0.00%	(1.00%)
Other adjustments	(1.00%)	(1.00%)	(1.00%)
Effective tax rate	(73.00%)	(15.00%)	0.00%

Effective Income Tax Rate Reconciliation, Change in Reserve For Uncertainty In Income Taxes

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Effective Income Tax Rate Reconciliation, Expired Capital Loss Carry Forwards

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Effective Income Tax Rate Reconciliation, Permanent Differences

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Publisher FASB
-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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