Corporate Income Taxes - Components of Deferred Tax Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets
Basis differences in depreciation and amortization	$ 6,578	$ 0
Deferred lease liabilities	24,345	25,077
Deferred revenue	10,974	12,603
Deferred compensation expense incurred in connection with stock options	1,589	2,370
Federal and state net operating loss carry-forwards	10,430	7,197
Accruals, reserves and other	7,654	6,121
Deferred Financing Arrangement	0	39,295
Deferred tax assets, gross	61,570	92,663
Deferred tax liabilities
Basis differences in depreciation and amortization	0	16,674
Deferred costs	1,751	5,604
Deferred rent receivable	0	1,564
Change in accounting method	6,621	10,121
Undistributed foreign earnings and other	622	587
Deferred tax liabilities, gross	8,994	34,550
Gross deferred tax assets	52,576	58,113
Valuation allowance	(52,637)	(69,689)
Deferred tax liabilities, net	$ (61)	$ (11,576)