CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 15,615	$ 23,161
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	7,367	6,158
Share-based compensation	2,158	982
Deferred income taxes	(2,623)	5,592
(Gain)/loss on disposals of plant and equipment	(1)	(322)
Gain on equity investment	0	(12,212)
Asset impairment	0	200
Foreign exchange expense	171	298
Excess tax from share-based payment arrangements	(2,063)	(731)
Changes in assets and liabilities, net of acquisitions:
Receivables	(28,686)	(25,395)
Inventory	(17,038)	(18,199)
Accounts payable and accrued expenses	(8,441)	(1,637)
Income taxes	2,459	(3,344)
Employee benefit plans	(1,485)	(693)
Other	1,788	(2,841)
Net cash flows from operating activities	(30,779)	(28,983)
Cash flows from investing activities:
Additions to property, plant, and equipment	(16,515)	(4,170)
Proceeds from sale of property, plant, and equipment	55	1,204
Additions to intangibles	48	0
Cash paid for acquisitions, net of cash acquired	0	(27,862)
Net cash flows from investing activities	(16,412)	(30,828)
Cash flows from financing activities:
Proceeds from issuance of debt	25,101	3,759
Repayment of debt	(85)	(1,739)
Proceeds from issuance of common stock	4,128	2,613
Excess tax from share-based payment arrangements	2,063	731
Purchases of common stock	(2,504)	(30)
Dividends paid	(3,417)	(3,152)
Payment of contingent consideration liability	(5,555)	0
Net cash flows from financing activities	19,731	2,182
Effect of exchange rate changes on cash	(1,212)	3,228
Net change in cash and equivalents	(28,672)	(54,401)
Cash and equivalents at beginning of period	103,338	153,337
Cash and equivalents at end of period	74,666	98,936
Cash paid for income taxes	4,430	6,245
Cash paid for interest, net of capitalized interest of $235 and $20, respectively	2,379	2,330
Non-cash items:
Additions to property, plant, and equipment, not yet paid	1,297	4
Pioneer Pump Holdings Inc [Member]
Non-cash items:
Payable to seller of acquired entities	0	1,698
Pioneer Pump Holdings, Inc. liability for mandatory share purchase	0	22,924
Impo Motor Pompa Sanayi ve Ticaret A.S.
Non-cash items:
Payable to seller of acquired entities	$ 0	$ 420