Future annual minimum payments for all commitments are as follows:



	Total		Less than 1 year		2-3 years		4-5 years		More than 5 years
	(Amounts in thousands)
Operating lease obligations (1)	$	44,489	$	12,808	$	15,478	$	8,005	$	8,198
Royalty obligations (2)	20,000		10,000		10,000		—		—
Long-term debt obligations (3)	300,000		—		300,000		—		—
Interest payments associated with long-term debt obligations (4)	20,441		10,350		10,091		—		—
Capital equipment and inventory related purchase obligations (5)	33,899		17,515		3,752		3,752		8,880

Total	$	418,829	$	50,673	$	339,321	$	11,757	$	17,078

(1) The Company leases some facilities under non-cancelable operating lease agreements that expire at various dates through 2025.

(2) Royalty obligations represent payments for licensed patents.

(3) Long-term debt represents amount due for the Company's 3.45% senior unsecured notes due 2013.

(4) Interest payments associated with the Company's 3.45% senior unsecured notes due 2013.

(5) Capital equipment purchase obligations represent commitments for purchase of property, plant and equipment. The Company orders some materials and supplies in advance or with minimum purchase quantities. The Company is obligated to pay for the materials and supplies when received.