Income Tax (Narrative) (Details) - USD ($)			12 Months Ended
	Dec. 31, 2007	Jan. 01, 2007	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Income Tax Disclosure [Line Items]
Valuation allowance			$ 11,530,000	$ 15,936,000
Net deferred tax asset, noncurrent			25,649,000	22,267,000	[1]
Alternative minimum tax carry forwards			540,000	3,540,000
Income taxes paid			8,553,000	6,407,000	[1]	$ 5,903,000	[1]
Accrued income taxes, current judgment			2,500,000
Gross tax benefits	$ 11,400,000	$ 10,800,000	11,022,000	3,760,000		2,160,000		$ 2,171,000
Increase (decrease) to unrecognized tax interest			500,000	3,600,000		1,400,000
Unrecognized tax benefits	2,300,000	1,700,000
Unrecognized tax interest			5,900,000	5,400,000		1,800,000
Uncertain tax position probable changes in next 12 months			1,500,000	500,000
Unrecognized tax benefits – net	$ 11,400,000	$ 10,800,000	11,022,000	$ 3,760,000		$ 2,160,000		$ 2,171,000
United States [Member]
Income Tax Disclosure [Line Items]
Alternative minimum tax carry forwards			1,100,000
New Zealand [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards			17,500,000
Puerto Rico [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards			14,100,000
New York [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards			45,000,000
New York City [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards			$ 40,000,000
Minimum [Member]
Income Tax Disclosure [Line Items]
Ownership percentage			20.00%
Maximum [Member]
Income Tax Disclosure [Line Items]
Ownership percentage			50.00%

[1] Certain prior period amounts have been reclassified to conform to the current period presentation (see Note 2 - Significant Accounting Policies - Reclassifications).