Nature of Business and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Effect of the Revisions to the Consolidated Statements of Cash Flows

The effect of the revisions to the consolidated statements of cash flows for the six months ended June 30, 2013, is as follows (in thousands):

	As Previously Reported		Adjustment		As Revised
Cash flows from operating activities:
Changes in operating assets and liabilities, net of effects from acquisitions:
Prepaid expenses and other current assets	(19,106	)	2,898		(16,208	)
Accounts payable and accrued expenses	25,311		(1,616	)	23,695
Other non-current assets and liabilities	(1,849	)	244		(1,605	)
Net cash provided by operating activities	232,762		1,526		234,288
Cash flows from investing activities:
Purchases of property and equipment	(100,847	)	(1,375	)	(102,222	)
Other non-current assets and liabilities	—		(362	)	(362	)
Net cash used in investing activities	(158,150	)	(1,737	)	(159,887	)
Cash flows from financing activities:
Proceeds related to the issuance of common stock under stock plans	28,050		211		28,261
Net cash used in financing activities	(66,235	)	211		(66,024	)
Net increase in cash and cash equivalents	2,876		—		2,876