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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Supplemental disclosure of non-cash investing activities:
Capitalized equipment related to the Company's co-location facility	$ 1,648	$ 889
Net cash paid for income taxes	$ 34	$ 21

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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