Subsequent Events - Disposed of Asset Sale (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Assets:
Accounts receivable	$ 1,220
Prepaid expenses and other current assets	177
Property and equipment, net	33,858
Total assets	35,255
Liabilities:
Accounts payable	184
Accrued liabilities and other	628
Deferred revenue	1,110
Total liabilities	1,922
Net assets	$ 33,333