CUSIP No. 443787106

	1	Name of Reporting Person: Sagard Capital Partners GP, Inc. I.R.S. Identification No. of Above Person (Entities Only): 20-3331555

	2	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)			o
		(b)			o

	3	SEC Use Only

	4	Source of Funds AF

	5	Check Box if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) o

	6	Citizenship or Place of Organization Delaware

Number of Shares Beneficially Owned by Each Reporting Person With			7	Sole Voting Power: 0

			8	Shared Voting Power: 3,191,584

			9	Sole Dispositive Power: 0

			10	Shared Dispositive Power: 3,191,584

	11	Aggregate Amount Beneficially Owned by Each Reporting Person: 3,191,584

	12	Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares o

	13	Percent of Class Represented by Amount in Row (11): 9.5%

	14	Type of Reporting Person: CO