Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings attributable to Moog and noncontrolling interest	$ 15,264	$ 61,720
Adjustments to reconcile net earnings to net cash provided (used) by operating activities:
Depreciation	35,536	35,372
Amortization	9,425	9,325
Deferred income taxes	30,709	423
Equity-based compensation expense	3,500	3,154
Impairment of long-lived assets and inventory write-down associated with restructuring	21,811	0
Other	2,960	15,481
Changes in assets and liabilities providing (using) cash:
Receivables	(30,111)	(20,989)
Inventories	(20,685)	14,327
Accounts payable	11,351	13,536
Customer advances	5,547	8,869
Accrued expenses	10,558	449
Accrued income taxes	4,953	(858)
Net pension and post retirement liabilities	(70,309)	(9,413)
Other assets and liabilities	14,721	(9,690)
Net cash provided by operating activities	45,230	121,706
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisitions of businesses, net of cash acquired	(42,116)	0
Purchase of property, plant and equipment	(43,924)	(30,210)
Other investing transactions	(3,781)	(928)
Net cash (used) by investing activities	(89,821)	(31,138)
CASH FLOWS FROM FINANCING ACTIVITIES
Net short-term repayments	0	(1,280)
Proceeds from revolving lines of credit	209,500	94,145
Payments on revolving lines of credit	(269,610)	(143,700)
Proceeds from long-term debt	10,000	0
Payments on long-term debt	(20,614)	(97)
Proceeds from sale of treasury stock	2,451	2,135
Purchase of outstanding shares for treasury	(5,118)	(5,305)
Proceeds from sale of stock held by SECT	1,941	867
Purchase of stock held by SECT	(7,914)	(7,038)
Other financing transactions	0	(1,656)
Net cash (used) by financing activities	(79,364)	(61,929)
Effect of exchange rate changes on cash	11,418	(11,278)
Increase (decrease) in cash and cash equivalents	(112,537)	17,361
Cash and cash equivalents at beginning of period	368,073	325,128
Cash and cash equivalents at end of period	$ 255,536	$ 342,489