Income Taxes - Significant Portions of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Gross deferred tax assets:
Net operating loss carryforwards	$ 510,274	$ 546,693
Deferred subscriber income	349,187	326,759
Interest expense limitation	161,408	142,919
Accrued expenses and allowances	52,010	56,495
Capitalized Research and Experimental Expenses	13,917	0
Lease liabilities	10,761	13,356
Purchased intangibles and deferred financing costs	8,690	9,687
Inventory reserves	2,083	1,859
Research and development credits	41	41
Deferred capitalized contract costs	0	1,800
Property and equipment	1,672	1,888
Valuation allowance	(737,374)	(740,397)
Total	372,669	361,100
Gross deferred tax liabilities:
Deferred capitalized contract costs	(364,406)	(346,887)
Right of use assets	(9,153)	(11,430)
Purchased intangibles and deferred financing costs	0	(959)
Property and equipment	0	(443)
Total	(373,559)	(359,719)
Net deferred tax assets (liabilities)	$ (890)
Net deferred tax assets (liabilities)		$ 1,381