Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Nov. 28, 2015	Nov. 29, 2014	Nov. 30, 2013
Cash flows from operating activities:
Net earnings	$ 134,913	$ 144,183	$ 118,350
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	31,075	30,065	26,329
Amortization	25,528	20,362	5,904
Other noncash items	(268)	995	1,754
Net (gain) loss on disposition of assets	(2,144)	67	3,862
Net gain on disposition of J.L. Clark	(12,132)	0	0
Impairment of investments	6,729	0	0
Bargain purchase gain	0	(2,815)	0
Stock-based compensation expense	9,093	7,278	5,060
Excess tax benefit from stock-based compensation	(1,246)	(2,769)	(8,528)
Deferred income taxes	3,452	911	1,216
Changes in assets and liabilities, net of business acquisitions:
Accounts receivable	31,782	(28,748)	(11,044)
Inventories	(22,058)	(7,846)	(7,826)
Prepaid expenses and other current assets	(13,490)	(7,004)	(1,833)
Other noncurrent assets	(10,809)	(2,384)	1,396
Accounts payable, accrued liabilities and other liabilities	(18,221)	2,591	8,363
Pension and postretirement healthcare liabilities, net	1,207	915	(20,616)
Income taxes	(9,666)	545	12,854
Net cash provided by operating activities	153,745	156,346	135,241
Cash flows from investing activities:
Restricted cash	0	1,339	(197)
Business acquisitions, net of cash acquired	(20,882)	(595,328)	0
Business dispositions, net of cash paid	45,232	0	0
Payments for purchase of property, plant and equipment	(64,535)	(69,681)	(44,651)
Proceeds from disposition of plant assets	7,469	491	3,373
Investment in affiliates	(525)	(1,073)	(615)
Net cash used in investing activities	(33,241)	(664,252)	(42,090)
Cash flows from financing activities:
Net borrowings (payments) under revolving credit agreement	197,000	(50,000)	50,000
Borrowings under term loan facility	0	315,000	100,000
Payments on term loan facility	(195,000)	(20,000)	0
Payments on long-term debt, including business acquisition-related seller financing	(8,665)	(1,620)	(4,037)
Payments of financing costs	(50)	(752)	(298)
Sale of capital stock under stock option and employee purchase plans	8,106	12,076	35,047
Acquisition of noncontrolling interest	(1,239)	0	0
Payments for repurchase of common stock	(70,777)	(32,822)	(27,708)
Excess tax benefit from stock-based compensation	1,246	2,769	8,528
Dividend paid to noncontrolling interests	(206)	(166)	(206)
Cash dividends paid	(40,972)	(35,805)	(28,744)
Net cash (used in) provided by financing activities	(110,557)	188,680	132,582
Net effect of exchange rate changes on cash	(2,482)	1,728	333
Net change in cash and cash equivalents	7,465	(317,498)	226,066
Cash and cash equivalents, beginning of period	94,064	411,562	185,496
Cash and cash equivalents, end of period	101,529	94,064	411,562
Cash paid during the period for interest	4,874	3,028	374
Cash paid during the period for income taxes, net of refunds	$ 70,146	$ 67,534	$ 42,602