Balance Sheet Components - Other Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Other Non Current Liabilities [Line Items]
Asset retirement obligations, non-current	$ 63,150	$ 56,243
Deferred tax liabilities, net	62,292	117,995
Deferred rent, non-current	41,951	48,372
Deferred installation revenue, non-current	26,086	24,281
Accrued taxes, non-current	19,373	22,226
Customer deposits, non-current	6,185	4,209
Deferred recurring revenue, non-current	5,381	5,472
Accrued restructuring charges, non-current	3,300	5,255
Other liabilities	3,125	2,371
Total other liabilities	$ 230,843	$ 286,424