EXHIBIT 1

JOINT ACQUISITION STATEMENT

PURSUANT TO RULE 13D-1(k)(1)

The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint acquisition statements.  The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him, her or it contained herein, but shall not be responsible for the completeness and accuracy of the information concerning the other entities or persons, except to the extent that he, she or it knows or has reason to believe that such information is accurate.

Dated:  April 9, 2012

GENERAL ATLANTIC PARTNERS 90, L.P.
By:	General Atlantic GenPar, L.P., its general partner
By:	General Atlantic LLC, its managing member
By:	/s/ Thomas J. Murphy
	Name:  Thomas J. Murphy
	Title:    Managing Director

GAPCO GMBH & CO. KG
By:	GAPCO Management GmbH, its general partner
By:	/s/ Thomas J. Murphy
	Name:  Thomas J. Murphy
	Title:    Procuration Officer

GAP COINVESTMENTS CDA, L.P.
By:	General Atlantic LLC, its general partner
By:	/s/ Thomas J. Murphy
	Name:  Thomas J. Murphy
	Title:    Managing Director

GAP COINVESTMENTS III, LLC
By:	General Atlantic LLC, its managing member
By:	/s/ Thomas J. Murphy
	Name:  Thomas J. Murphy
	Title:    Managing Director

GAP COINVESTMENTS IV, LLC
By:	General Atlantic LLC, its managing member
By:	/s/ Thomas J. Murphy
	Name:  Thomas J. Murphy
	Title:    Managing Director

GAPCO MANAGEMENT GMBH
By:	/s/ Thomas J. Murphy
	Name:  Thomas J. Murphy
	Title:    Procuration Officer

GENERAL ATLANTIC GENPAR, L.P.
By:	General Atlantic LLC, its general partner
By:	/s/ Thomas J. Murphy
	Name:  Thomas J. Murphy
	Title:    Managing Director

GENERAL ATLANTIC LLC
By:	/s/ Thomas J. Murphy
	Name:  Thomas J. Murphy
	Title:    Managing Director