Statement of Cash Flows

3 Months Ended

Mar. 31, 2014

Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]

Statement of Cash Flows

Statement of Cash Flows

Supplemental disclosure of non-cash investing and financing activities:

Included in accounts payable and accrued expenses at March 31, 2014 and December 31, 2013 were $17.6 million and $16.1 million, respectively, of accrued capital expenditures. Included in accounts payable and accrued expenses at March 31, 2013 and December 31, 2012 were $10.1 million and $8.6 million, respectively, of accrued capital expenditures.

Pursuant to the application of FASB authoritative guidance to the Company's lease of office and laboratory facilities in Tarrytown, New York, the Company recognized a facility lease obligation of $19.4 million during the three months ended March 31, 2014 in connection with capitalizing, on the Company's books, the landlord's costs of constructing new facilities that the Company has leased. The Company did not recognize any such facility lease obligation during the three months ended March 31, 2013.