CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Cash flows from operating activities:
Net income	$ 83,738	$ 63,723	$ 39,918
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	28,335	25,295	24,040
Share-based compensation	6,253	3,970	4,273
Deferred income taxes	8,571	3,867	9,699
(Gain)/loss on disposals of plant and equipment	(216)	2,781	(1,632)
Gain on equity investment	(12,212)	0	0
Asset impairment	583	200	2,420
Foreign exchange expense	1,662	1,422	967
Excess tax from share-based payment arrangements	(5,246)	(2,495)	(1,321)
Changes in assets and liabilities, net of acquisitions:
Receivables	(9,603)	(926)	(3,588)
Inventory	(23,706)	3,923	13,519
Accounts payable and accrued expenses	5,330	6,827	21,373
Income taxes	(1,077)	3,309	(2,923)
Employee benefit plans	(5,877)	(10,769)	(6,745)
Other	(6,344)	(1,206)	(5,385)
Net cash flows from operating activities	70,191	99,921	94,615
Cash flows from investing activities:
Additions to property, plant, and equipment	(39,312)	(21,846)	(13,709)
Proceeds from sale of property, plant, and equipment	2,286	324	1,769
Additions to intangibles	(744)	(1,216)	(439)
Cash paid for acquisitions, net of cash acquired	(64,359)	(25,143)	(11,785)
Purchase of remaining redeemable noncontrolling shares	0	(7,056)	0
Additional consideration for prior acquisition	0	(7,765)	0
Loan to customer	0	(3,318)	0
Proceeds from loan to customer	489	265	0
Net cash flows from investing activities	(101,640)	(65,755)	(24,164)
Cash flows from financing activities:
Proceeds from issuance of debt	71,988	19,841	0
Repayment of debt	(76,424)	(19,917)	(1,218)
Proceeds from issuance of common stock	15,432	8,910	5,015
Excess tax from share-based payment arrangements	5,246	2,495	1,321
Purchases of common stock	(21,689)	(13,910)	(7,242)
Dividends paid	(13,811)	(12,890)	(12,334)
Net cash flows from financing activities	(19,258)	(15,471)	(14,458)
Effect of exchange rate changes on cash	708	(5,428)	(2,798)
Net change in cash and equivalents	(49,999)	13,267	53,195
Cash and equivalents at beginning of period	153,337	140,070	86,875
Cash and equivalents at end of period	103,338	153,337	140,070
Cash paid for income taxes	22,635	13,841	13,901
Cash paid for interest, net of capitalized interest of $286, $0, and $0, respectively	11,491	10,504	9,693
Non-cash items:
Additions to property, plant, and equipment, not yet paid	3,265	187	889
Pioneer Pump Holdings Inc [Member]
Non-cash items:
Pioneer Pump Holdings, Inc. liability for mandatory share purchase	22,924	0	0
Impo Motor Pompa Sanayi ve Ticaret A.S.
Non-cash items:
Payable to seller of acquired entities	546	5,038	0
Vertical S.p.A. [Member]
Non-cash items:
Payable to seller of acquired entities	0	370	0
Healy Systems Inc
Non-cash items:
Payable to seller of acquired entities	$ 0	$ 0	$ 970