Multi Fineline Electronix (MFLX) 10-Q 5 May 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Mar. 31, 2014	Apr. 30, 2014
Document Information [Line Items]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Trading Symbol	'MFLX	'
Entity Registrant Name	'MULTI FINELINE ELECTRONIX INC	'
Entity Central Index Key	'0000830916	'
Current Fiscal Year End Date	'--09-30	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	24,135,975

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and cash equivalents	$124,562	$105,150
Accounts receivable, net of allowances of $2,376 and $4,281 at March 31, 2014 and September 30, 2013, respectively	75,451	132,247
Inventories	57,780	86,853
Deferred taxes	4,887	5,909
Income tax receivable	3,385	2,535
Assets held for sale	9,569	0
Other current assets	9,989	8,821
Total current assets	285,623	341,515
Property, plant and equipment, net	197,598	244,056
Land use rights	6,620	7,703
Deferred taxes	7,848	11,685
Other assets	4,725	5,255
Total assets	502,414	610,214
LIABILITIES AND STOCKHOLDERS' EQUITY	'	'
Accounts payable	111,859	166,474
Accrued liabilities	36,058	31,459
Income taxes payable	1,893	1,027
Total current liabilities	149,810	198,960
Other long-term liabilities	20,579	19,063
Total liabilities	170,389	218,023
Commitments and contingencies (Note 2)	'	'
Stockholders' equity	'	'
Preferred stock, $0.0001 par value, 5,000,000 and 5,000,000 shares authorized at March 31, 2014 and September 30, 2013, respectively; 0 and 0 shares issued and outstanding at March 31, 2014 and September 30, 2013, respectively	'	'
Common stock, $0.0001 par value; 100,000,000 and 100,000,000 shares authorized at March 31, 2014 and September 30, 2013, respectively; 24,093,475 and 24,082,802 shares issued and outstanding at March 31, 2014 and September 30, 2013, respectively	2	2
Additional paid in capital	92,513	90,857
Retained earnings	190,961	252,656
Accumulated other comprehensive income	48,549	48,676
Total stockholders' equity	332,025	392,191
Total liabilities and stockholders' equity	$502,414	$610,214

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Sep. 30, 2013
In Thousands, except Share data, unless otherwise specified
Accounts receivable, allowances	$2,376	$4,281
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	24,093,475	24,082,802
Common stock, shares outstanding	24,093,475	24,082,802

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Net sales	$117,793	$173,674	$329,465	$463,324
Cost of sales	130,765	189,207	339,941	454,154
Gross (loss) profit	-12,972	-15,533	-10,476	9,170
Operating expenses	'	'	'	'
Research and development	1,496	1,782	2,951	3,815
Sales and marketing	4,353	4,712	10,261	11,249
General and administrative	3,634	4,295	6,977	9,967
Impairment and restructuring	24,798	'	24,798	'
Total operating expenses	34,281	10,789	44,987	25,031
Operating loss	-47,253	-26,322	-55,463	-15,861
Other income and expense	'	'	'	'
Interest income	246	86	455	156
Interest expense	-217	-138	-339	-249
Other (expense) income, net	116	170	412	155
Loss before income taxes	-47,108	-26,204	-54,935	-15,799
(Provision for) benefit from income taxes	-5,308	2,325	-6,760	268
Net loss	-52,416	-23,879	-61,695	-15,531
Other comprehensive income, net of tax:	'	'	'	'
Foreign currency translation adjustment	-2,310	662	-127	2,875
Total comprehensive net loss	($54,726)	($23,217)	($61,822)	($12,656)
Net loss per share:	'	'	'	'
Basic	($2.18)	($1)	($2.56)	($0.65)
Diluted	($2.18)	($1)	($2.56)	($0.65)
Shares used in computing net loss per share:	'	'	'	'
Basic	24,090,754	23,798,587	24,087,306	23,796,966
Diluted	24,090,754	23,798,587	24,087,306	23,796,966

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities	'	'
Net loss	($61,695)	($15,531)
Adjustments to reconcile net loss to net cash provided by operating activities:	'	'
Depreciation and amortization	26,508	29,158
Deferred taxes	4,863	-106
Stock-based compensation expense	1,575	2,548
Income tax benefit related to stock option exercises	'	-29
Asset impairments	11,549	0
Gain on disposal of property, plant and equipment	-1,583	-124
Changes in operating assets and liabilities:	'	'
Accounts receivable	56,805	63,898
Inventories	29,197	71,655
Other current assets	-1,330	4,351
Other assets	531	205
Accounts payable	-49,431	-56,422
Accrued liabilities	4,433	-19,439
Income taxes	4	-4,626
Other liabilities	1,703	477
Net cash provided by operating activities	23,129	76,015
Cash flows from investing activities	'	'
Purchases of property and equipment	-10,410	-26,792
Proceeds from sale of equipment and assets held for sale	2,536	136
Government grants received	4,151	'
Net cash used in investing activities	-3,723	-26,656
Cash flows from financing activities	'	'
Income tax benefit related to stock option exercises	'	29
Tax withholdings for net share settlement of equity awards	-5	-803
Proceeds from exercise of stock options	94	597
Repurchase of common stock	'	-1,444
Net cash provided by (used in) financing activities	89	-1,621
Effect of exchange rate changes on cash	-83	-219
Net increase in cash	19,412	47,519
Cash and cash equivalents at beginning of period	105,150	82,322
Cash and cash equivalents at end of period	124,562	129,841
Non-cash investing activities	'	'
Purchases of property and equipment	$2,421	$5,500

Description_of_Business

Description of Business	6 Months Ended
	Mar. 31, 2014
Description of Business	'
	1. Description of Business
	Multi-Fineline Electronix, Inc. (“MFLEX” or the “Company”) was incorporated in 1984 in the State of California and reincorporated in the State of Delaware in June 2004. The Company is primarily engaged in the engineering, design and manufacture of flexible printed circuit boards along with related component assemblies.
	United Engineers Limited (“UEL”) and its wholly owned subsidiary, UE Centennial Venture Pte. Ltd (“UECV”, and together with UEL, “UE”), through its affiliates and subsidiaries, beneficially owned approximately 62% of the Company’s outstanding common stock as of each of March 31, 2014 and September 30, 2013. This beneficial ownership of the Company’s common stock by UE provides these entities with control over the outcome of stockholder votes at the Company, except with respect to certain related-party transactions with UE or its subsidiaries, including WBL Corporation Limited (“WBL”), which require a separate vote of the non-UE stockholders.

Basis_of_Presentation

Basis of Presentation	6 Months Ended
	Mar. 31, 2014
Basis of Presentation	'
	2. Basis of Presentation
	Principles of Consolidation
	The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. The Company has two wholly owned subsidiaries located in China: MFLEX Suzhou Co., Ltd., (“MFC”) and MFLEX Chengdu Co., Ltd. (“MFLEX Chengdu”); one located in the Cayman Islands: M-Flex Cayman Islands, Inc. (“MFCI”); one located in Singapore: Multi-Fineline Electronix Singapore Pte. Ltd. (“MFLEX Singapore”); one located in Malaysia: Multi-Fineline Electronix Malaysia Sdn. Bhd. (“MFM”); one located in Cambridge, England: MFLEX UK Limited (“MFE”); one located in Korea: MFLEX Korea, Ltd. (“MKR”); and one located in the Netherlands: MFLEX B.V. (“MNE”). All significant intercompany transactions and balances have been eliminated in consolidation.
	Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s 2013 Annual Report on Form 10-K. The financial information presented in the accompanying statements reflects all adjustments that are, in the opinion of management, necessary for a fair statement of the periods indicated. All such adjustments are of a normal recurring nature. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. Operating results for the three and six months ended March 31, 2014 are not necessarily indicative of the results that may be expected for the fiscal year ending September 30, 2014. Unless otherwise indicated, the financial information in these notes is presented in thousands (except per share amounts).
	Fair Value Measurements
	The carrying amounts of certain of the Company’s financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximated fair value due to their short maturities. For recognition purposes, on a recurring basis, the Company’s assets and liabilities related to money market funds and derivative financial instruments are measured at fair value at the end of each reporting period. The fair value of the Company’s money market funds were measured using Level 1 fair value inputs and the fair value of the Company’s derivative assets and liabilities were measured using Level 2 fair value inputs, which consisted of observable market-based inputs of foreign currency spot and forward rates quoted by major financial institutions.
	The Company’s assets and liabilities measured at fair value on a recurring basis subject to the disclosure requirements as defined under the Financial Accounting Standards Board (“FASB”) authoritative accounting guidance were as follows:
		Fair Value Measurements of Assets and Liabilities
		on a Recurring Basis as of
		March 31, 2014
		Level 1				Level 2			Level 3
	Money market funds (cash and cash equivalents)	$	14,800			$	-		$	-
	Forward contracts (accrued liabilities)		-				471			-
		$	14,800			$	471		$	-
		Fair Value Measurements of Assets and Liabilities
		on a Recurring Basis as of
		September 30, 2013
		Level 1				Level 2			Level 3
	Money market funds (cash and cash equivalents)	$	14,141			$	-		$	-
	Forward contracts (other current assets)		-				179			-
	Forward contracts (accrued liabilities)		-				(34	)		-
		$	14,141			$	145		$	-
	As of March 31, 2014, assets held for sale were measured at fair value on a non-recurring basis for the Company's single reporting unit. Based on the relevant FASB guidance, the carrying value of assets held for sale was written down to $9,569 after recording a non-cash impairment charge of $11,549 during the three months ended March 31, 2014 (refer to Note 8). The fair value of the assets was determined using Level 3 unobservable inputs not corroborated by market data, consisting of third-party offers for the building and equipment. Below is a summary of the Company’s assets measured at fair value on a non-recurring basis as of March 31, 2014:
		Fair Value Measurements of Assets
		on a Non-Recurring Basis as of
		March 31, 2014
		Level 1		Level 2		Level 3
	Building and equipment (assets held for sale)	$	—	$	—	$	9,569
		$	—	$	—	$	9,569
	No assets or liabilities were measured at fair value on a non-recurring basis as of September 30, 2013.
	Inventories
	Inventories, net of applicable write-downs, were composed of the following:
		March 31,				September 30,
		2014				2013
	Raw materials and supplies	$	15,260			$	27,080
	Work-in-progress		14,316				20,965
	Finished goods		28,204				38,808
		$	57,780			$	86,853
	Property, Plant and Equipment
	Property, plant and equipment, net, were composed of the following:
		March 31,				September 30,
		2014				2013
	Building	$	52,598			$	68,679
	Machinery and equipment		353,678				406,010
	Computers and capitalized software		12,663				13,014
	Leasehold improvements		14,284				14,145
	Construction-in-progress		2,262				5,307
		$	435,485			$	507,155
	Accumulated depreciation and amortization		(237,887	)			(263,099	)
		$	197,598			$	244,056
	Accrued Liabilities
	Accrued liabilities were composed of the following:
		March 31,				September 30,
		2014				2013
	Wages and compensation	$	10,109			$	16,822
	Restructuring expenses¹		7,771				-
	Other accrued expenses		18,178				14,637
		$	36,058			$	31,459
	1	Refer to Note 8 for further information on the Company’s impairment and restructuring activities during the three months ended March 31, 2014.
	Product Warranty Accrual
	Changes in the product warranty accrual for the three months ended March 31, 2014 and 2013 were as follows:
		Balance at				Warranty			Provision for			Balance at
		January 1				Expenditures			Estimated			March 31
						Warranty Cost
Fiscal 2014	$	1,452			$	(1,234	)	$	1,596		$	1,814
Fiscal 2013	$	315			$	(425	)	$	333		$	223
Changes in the product warranty accrual for the six months ended March 31, 2014 and 2013 were as follows:
	Balance at				Warranty			Provision for			Balance at
	October 1				Expenditures			Estimated			March 31
								Warranty Cost
Fiscal 2014	$	1,076			$	(2,245	)	$	2,983		$	1,814
Fiscal 2013	$	346			$	(826	)	$	703		$	223
Net Income Per Share—Basic and Diluted
The following table presents a reconciliation of basic and diluted shares for the three and six months ended March 31, 2014 and 2013:
	Three Months Ended							Six Months Ended
	March 31,							March 31,
	2014				2013			2014			2013
Basic weighted-average number of common shares outstanding		24,090,754				23,798,587			24,087,306			23,796,966
Dilutive effect of potential common shares		-				-			-			-
Diluted weighted-average number of common and potential		24,090,754				23,798,587			24,087,306			23,796,966
common shares outstanding
Potential common shares excluded from the per share		934,394				831,603			870,692			838,621
computations as the effect of their inclusion would not
be dilutive
Commitments and Contingencies
Litigation
The Company is involved in litigation from time to time in the ordinary course of business. Management does not believe the outcome of any currently pending matters will have a material adverse effect on the Company’s financial position, results of operations or cash flows.
Other Commitments
The Company has outstanding purchase and other commitments, which exclude amounts already recorded on the Condensed Consolidated Balance Sheets. The outstanding purchase commitments to acquire capital assets and other materials and services totaled $7,889 and $6,454 as of March 31, 2014 and September 30, 2013, respectively.
Pursuant to the laws applicable to the People’s Republic of China’s Foreign Investment Enterprises, the Company’s two wholly owned subsidiaries in China, MFC and MFLEX Chengdu, are restricted from paying cash dividends on 10% of after-tax statutory profit, subject to certain cumulative limits. These restrictions as of March 31, 2014 and September 30, 2013 were $19,825 and $19,838, respectively.
Significant Concentrations
The Company’s net sales into its largest industry sectors, as a percentage of total net sales, are presented below:
	Three Months Ended							Six Months Ended
	March 31,							March 31,
	2014				2013			2014			2013
Smartphones		74	%			65	%		74	%		67	%
Tablets		11	%			28	%		15	%		26	%
Consumer electronics		10	%			5	%		8	%		6	%

Lines_of_Credit

Lines of Credit	6 Months Ended
	Mar. 31, 2014
Lines of Credit	'
	3. Lines of Credit
	During July 2013, MFC entered into a Line of General Credit Agreement (the “MFC Credit Line”) with Agricultural Bank of China, Suzhou Wuzhong Sub-branch (“ABC”), providing for a line of credit to MFC in an amount of 200,000 Chinese Renminbi (“RMB”) ($32,509 at March 31, 2014). The MFC Credit Line became effective on July 31, 2013 and will mature on July 30, 2016.
	During May 2013, MFC entered into a Line of Credit Agreement (the “CCB Credit Line”) with China Construction Bank, Suzhou Industry Park Sub-Branch (“CCB”), which provides for a borrowing facility for 300,000 RMB ($48,764 at March 31, 2014). The CCB Credit Line will mature on May 5, 2016.
	During March 2013, MFLEX Chengdu entered into a Line of Credit Agreement (the “MCH Credit Line”) with Bank of China Co., Ltd. Chengdu Development West Zone Sub-Branch (“BC”), providing for a line of credit to MFLEX Chengdu in an amount of $11,000. The MCH Credit Line matured on February 5, 2014.
	During January 2012, MFLEX Singapore entered into a Facility Agreement (the “Facility Agreement”) with JPMorgan Chase Bank, N.A., Singapore Branch (“JPM”), as mandated lead arranger, the financial institutions from time to time party thereto, as lenders, and JPMorgan Chase Bank, N.A. acting through its Hong Kong Branch, as facility agent and as security agent. The Facility Agreement provided for a three-year, revolving credit facility, under which MFLEX Singapore may obtain loans and other financial accommodations in an aggregate principal amount of up to $50,000. As of December 31, 2013, the Company was not in compliance with one of the financial covenants under the Facility Agreement with JPM due to its trailing twelve-month net losses. No amounts were outstanding under the Facility Agreement with JPM as of December 31, 2013. Effective February 5, 2014, the Company terminated the Facility Agreement.
	A summary of the lines of credit is as follows:
		Amounts Available at				Amounts Outstanding at
		March 31,		September 30,		March 31,		September 30,
		2014		2013		2014		2013
	Line of credit (ABC)	$	32,509	$	32,531	$	-	$	-
	Line of credit (CCB)		48,764		48,796		-		-
	Line of credit (BC)		-		11,000		-		-
	Line of credit (JPM)		-		50,000		-		-
		$	81,273	$	142,327	$	-	$	-
	As of March 31, 2014, the Company was in compliance with all applicable financial covenants.

Segment_Information

Segment Information	6 Months Ended
	Mar. 31, 2014
Segment Information	'
	4. Segment Information
	Based on the evaluation of the Company’s internal financial information, management believes that the Company operates in one reportable segment. The Company is primarily engaged in the engineering, design and manufacture of flexible circuit boards along with related component assemblies. For the periods presented, the Company operated in four geographical areas: United States, China, Singapore and Other (which includes Malaysia, Korea and the United Kingdom). Net sales are presented based on the country in which the sales originate, which is where the legal entity is domiciled. The financial results of the Company’s geographic segments are presented on a basis consistent with the condensed consolidated financial statements. Segment net sales and assets amounts include intra-company product sales transactions and subsidiary investment amounts, respectively, which are offset in the eliminations line.
	Financial information by geographic segment is as follows:
		Three Months Ended						Six Months Ended
		March 31,						March 31,
		2014			2013			2014			2013
	Net sales
	United States	$	3,519		$	2,973		$	8,629		$	5,855
	China		110,559			138,704			338,016			441,160
	Singapore		94,239			169,586			288,264			454,687
	Other		3,244			411			4,953			464
	Eliminations		(93,768	)		(138,000	)		(310,397	)		(438,842	)
	Total	$	117,793		$	173,674		$	329,465		$	463,324
	Operating (loss) income
	United States	$	(2,045	)	$	(1,599	)	$	(3,723	)	$	(4,194	)
	China		(20,170	)		(12,963	)		(8,561	)		(1,998	)
	Singapore		(24,333	)		(12,094	)		(42,612	)		(11,461	)
	Other		(1,070	)		(718	)		(1,655	)		(1,534	)
	Eliminations		365			1,052			1,088			3,326
	Total	$	(47,253	)	$	(26,322	)	$	(55,463	)	$	(15,861	)
	Depreciation and amortization
	United States	$	327		$	647		$	674		$	1,297
	China		13,292			14,015			25,718			27,717
	Singapore		33			36			66			59
	Other		35			42			50			85
	Total	$	13,687		$	14,740		$	26,508		$	29,158
		March 31,			September 30,
		2014			2013
	Total assets
	United States	$	138,750		$	136,299
	China		350,371			403,824
	Singapore		233,630			295,714
	Other		10,480			2,022
	Eliminations		(230,817	)		(227,645	)
	Total	$	502,414		$	610,214

StockBased_Compensation

Stock-Based Compensation	6 Months Ended
	Mar. 31, 2014
Stock-Based Compensation	'
	5. Stock-Based Compensation
	2014	Equity Incentive Plan
	At the Company’s annual meeting of stockholders on March 5, 2014, the stockholders approved the Company’s 2014 Equity Incentive Plan (the “2014 Plan”). Upon stockholder approval of the 2014 Plan, the Company’s 2004 Stock Incentive Plan, as amended and restated to date (the “2004 Plan”) was terminated. Under the 2014 Plan, the Company is authorized to issue up to 1,639,279 shares, increased by not more than 2,062,007 shares comprised of the aggregate number of shares of stock that remain available for the future grant of awards under the 2004 Plan immediately prior to its termination and the number of shares subject to any option or other award outstanding under the 2004 Plan that expires or is forfeited for any reason after March 5, 2014.
	Service and Performance-Based Restricted Stock Units
	During the three and six months ended March 31, 2014 and 2013, the Company granted service-based restricted stock units (“RSUs”) under the 2004 Plan and 2014 Plan to certain employees (including executive officers) and directors at no cost to such individual. Each RSU represents one hypothetical share of the Company’s common stock, without voting or dividend rights. The RSUs granted to employees generally vest over a period of three years with one-third vesting on each of the anniversary dates of the grant date. Total compensation cost related to RSUs is determined based on the fair value of the Company’s common stock on the date of grant and is amortized into expense over the vesting period using the straight-line method.
	The Company also grants performance-based RSUs to certain employees (including executive officers) from time to time. For such performance-based RSUs, the Company records stock-based compensation expense based on the grant-date fair value and the probability that the performance metrics will be achieved. Management generally considers the probability that the performance metrics will be achieved to be a 70% chance or greater (“Probability Threshold”). At the end of each reporting period, the Company evaluates the awards to determine if the related performance metrics meet the Probability Threshold. If the Company determines that the vesting of any of the outstanding performance-based RSUs does not meet the Probability Threshold, the stock-based compensation expense related to those performance-based RSUs is reversed in the period in which this determination is made. However, if at a future date conditions have changed and the Probability Threshold is deemed to be met, the previously reversed stock-based compensation expense, as well as all subsequent projected stock-based compensation expense through the date of evaluation, is recognized in the period in which this new determination is made.
	On November 11, 2013, the Company granted 183,292 performance-based RSUs (the “November 2013 Awards”). On December 19, 2013, the Company granted 78,553 performance-based RSUs (the “December 2013 Awards”). Both the November 2013 Awards and the December 2013 Awards vest upon the achievement of defined performance and market objectives pertaining to such grants, with vesting estimated to occur between September 30, 2016 and November 30, 2016.
	Approximately two-fifths of the November 2013 Awards and the December 2013 Awards contained performance conditions whereby the Company recorded stock-based compensation cost based on the grant-date fair value and the probability that the performance metrics will be achieved. At the end of each reporting period, the Company evaluates the probability that the performance-based RSUs will vest. As of March 31, 2014, the Company considers the vesting of the November 2013 Awards and the December 2013 Awards to be probable.
	Approximately three-fifths of the November 2013 Awards and the December 2013 Awards contained both market and performance conditions, whereby the market condition was measured by determining the Company’s total shareholder return (“TSR”) for the three-year period beginning November 30, 2013 through November 30, 2016 versus the TSR of the Nasdaq Total Return Index for the same period, using the three-month average daily closing price of each on November 30, 2013 as compared to November 30, 2016. An award with a market condition is accounted for and measured differently from an award that has only a performance or service condition. The effect of a market condition is reflected in the award’s fair value on the grant date (e.g., a discount may be taken when estimating the fair value of such grant to reflect the market condition). The fair value may be lower than the fair value of an identical award that has only a service or performance condition because those awards will not include a discount on the fair value. All compensation costs for an award that has a market condition will be recognized if the requisite service period is fulfilled, even if the market condition is never satisfied.
	The grant date fair values of the portion of the November 2013 Awards and the December 2013 Awards containing both market and performance conditions were calculated utilizing the following assumptions:
		November 2013			Nasdaq Total Return			December 2013			Nasdaq Total Return
		Awards			Index Benchmark			Awards			Index Benchmark
					Inputs						Inputs
	Expected stock return/ discount rate1		0.65	%		0.65	%		0.7	%		0.7	%
	Dividend yield		—			—			—			—
	Volatility2		40	%		20	%		40	%		20	%
	Grant date		11/30/13			11/30/13			12/19/13			12/19/13
	Three-month average	$	14.6		$	4,194.45		$	14.6		$	4,194.45
	share price3
	Expected vesting period		3.1			N/A			3			N/A
	(in years)
	Correlation		0.48			0.48			0.48			0.48
	Fair value per share	$	8.28			N/A		$	6.7			N/A
	1	The expected stock return/discount rate was based on the yield to maturity of short-term government bonds over the expected term as of the grant date.
	2	Volatilities were calculated as of fiscal year end dates for the Company.
	3	The three-month daily average share price was based on the average of the three-month daily closing price for the Company’s common stock and the Nasdaq Total Return Index as of November 30, 2013.
	RSU activity for the six months ended March 31, 2014 under the 2004 Plan and 2014 Plan is summarized as follows:
		Number of				Weighted
		Shares				-Average
						Grant-Date
						Fair Value
	Non-vested shares outstanding at September 30, 2013		336,374			$	17.55
	Granted		584,333				11.44
	Vested		(1,745	)			13.57
	Canceled		(33,675	)			16.14
	Non-vested shares outstanding at March 31, 2014		885,287			$	13.58
	RSU details for the three and six months ended March 31, 2014 and 2013 are summarized as follows:
		Three Months Ended March 31,								Six Months Ended March 31,
		2014				2013				2014				2013
	Service-based RSUs granted		49,116				26,620				322,488				205,811
	Performance-based RSUs granted		-				-				261,845				72,031
	Compensation cost recognized	$	954			$	977			$	1,575			$	1,986
	Weighted-average grant-date fair value of non-vested RSUs granted	$	13.89			$	15.27			$	11.44			$	18.18
	Weighted-average grant-date fair value of RSUs vested	$	13.57			$	26.93			$	13.57			$	22.99
	Aggregate intrinsic value of RSUs vested	$	25			$	328			$	25			$	2,512
	Unearned compensation as of March 31, 2014 was $7,529 related to non-vested RSUs, which will be recognized into expense over the weighted-average remaining contractual life of the non-vested RSUs of 1.7 years.
	Stock-based Compensation Expense Summary
	The following table shows a summary of the stock-based compensation expense by expense type included in the Condensed Consolidated Statements of Comprehensive Income for the three and six months ended March 31, 2014 and 2013:
		Three Months Ended								Six Months Ended
		March 31,								March 31,
		2014				2013				2014				2013
	Cost of sales	$	62			$	133			$	117			$	266
	Research and development		108				151				181				306
	Sales and marketing		149				179				252				392
	General and administrative		635				778				1,025				1,584
	Total	$	954			$	1,241			$	1,575			$	2,548

Income_Taxes

Income Taxes	6 Months Ended
	Mar. 31, 2014
Income Taxes	'
	6. Income Taxes
	As of March 31, 2014, the Company recorded a liability for income taxes associated with uncertain tax positions of $15,666, of which $10,744, if recognized, would favorably affect the Company’s effective tax rate. As of September 30, 2013, the total liability for income taxes associated with uncertain tax positions was $15,425, of which $10,517, if recognized, would favorably affect the Company’s effective tax rate. The Company anticipates that there will be changes to the unrecognized tax benefit associated with uncertain tax positions due to the expiration of statutes of limitation, payment of tax on amended returns, audit settlements and other changes in reserves. However, due to the uncertainty regarding the timing of these events, other than the statute of limitation expiration, a current estimate of the range of changes that may occur within the next 12 months cannot be made.
	For the three months ended March 31, 2014, the Company incurred significant losses in one of its entities. In addition, the changes in the Company’s forecasted results indicated a three-year cumulative loss by the fourth quarter of fiscal 2014 for another entity. Evidence such as cumulative losses in recent years represents sufficient negative evidence to require a valuation allowance. As a result, the Company recorded a charge of $5,001 to reflect a valuation allowance against the deferred tax assets previously recorded related to these two entities. The Company intends to maintain a valuation allowance on its deferred tax assets until sufficient positive evidence exists to support a reversal. Based on an evaluation of the positive and negative evidence, the Company concluded that no valuation allowances were required for its other entities as of March 31, 2014.
	The Company currently enjoys certain tax incentives for certain of its Asian operations. Certain Asian operations are subject to taxes at a rate lower than the statutory rates and for the three and six months ended March 31, 2014, the Company realized tax savings for these operations. However, these tax holidays and tax incentives may be challenged, modified or even eliminated by taxing authorities or changes in law. The tax incentives for the Company’s operations in Singapore expired on June 30, 2013.
	The Internal Revenue Service (“IRS”) is currently examining the Company’s income tax returns for fiscal years 2007 through 2010. On August 1, 2012, the Company received a Revenue Agent Report (the “Original Report”) from the IRS relating to its examination of the Company’s income tax returns for fiscal years 2007 and 2008. On February 6, 2013, the IRS withdrew the Original Report and issued a revised Revenue Agent Report (the “Revised Report”). In the Revised Report, the IRS reduced its proposed adjustments. The remaining proposed adjustments would result in $32,363 of additional taxable income for those two years. Management believes there are numerous errors in the Revised Report, does not agree with the proposed adjustments and has contested the proposed adjustments with the IRS Appeals Office. After reviewing the Revised Report, management continues to believe that an adequate provision has been made for all of the Company’s uncertain tax positions.
	The Chinese tax authority is currently auditing the income tax returns of MFC and Multi-Fineline Electronix (Suzhou) Co., Ltd. (a now-dissolved subsidiary of the Company) for tax years 2005 through 2011. During fiscal year 2013, the Chinese tax authority raised questions related to transfer pricing on tangible goods sold by the Company to related parties. The questions primarily related to the transfer pricing methodology and the selection of comparable companies. Discussions with the Chinese tax authority surrounding this issue are ongoing. In the event that the audit results in proposed assessment by the Chinese tax authority, the Company may be required to remit the assessment regardless of whether the Company contests the proposed adjustments. Management believes that an adequate provision has been made related to this audit.
	The outcome of these tax audits cannot be predicted with certainty. If any issues raised in the Company’s tax audits are resolved in a manner not consistent with management’s expectations, then the Company could be required to adjust its provision for income tax in the period such resolution occurs. Any significant adjustments from the tax authorities could have a material adverse effect on the Company’s results of operations, cash flows and financial position if not resolved favorably.

Derivative_Financial_Instrumen

Derivative Financial Instruments	6 Months Ended
	Mar. 31, 2014
Derivative Financial Instruments	'
	7. Derivative Financial Instruments
	Foreign Currency Forward Contracts
	The Company transacts business in various foreign countries and is therefore exposed to gains and losses resulting from fluctuations in foreign currency exchange rates relating to purchases, obligations, and monetary assets and liabilities that are denominated in currencies other than the Company’s reporting currency. The Company has established foreign currency risk management programs to attempt to protect against short-term volatility in the value of non-U.S. dollar denominated monetary assets and liabilities, and of future cash flows caused by changes in foreign currency exchange rates. As a result, from time to time, the Company enters into foreign currency forward contracts to hedge its aforementioned currency exposures.
	The Company accounts for all of its derivative instruments in accordance with the relevant FASB authoritative accounting guidance for derivatives and hedges. The guidance requires companies to recognize all derivative instruments as either assets or liabilities at fair value in the Condensed Consolidated Balance Sheets.
	As of March 31, 2014, the aggregate notional amount of the Company’s outstanding foreign currency forward contracts is summarized below:
	Currency	Buy/		Foreign		Notional
		Sell		Currency		Contract
				Amount		Value in
						USD
	Foreign currency non-hedge derivatives:
	RMB		Buy	¥	244,736	$	40,000
	The changes in fair value of the Company’s derivative instruments are recognized into earnings during the period of change as other income (expense), net in the Condensed Consolidated Statements of Comprehensive Income. The Company recognized net losses of $544 and $130 during the three and six months ended March 31, 2014 and $50 and $50 during the three and six months ended March 31, 2013, respectively, related to derivative financial instruments.

Impairment_and_Restructuring

Impairment and Restructuring	6 Months Ended
	Mar. 31, 2014
Impairment and Restructuring	'
	8. Impairment and Restructuring
	During the second quarter of fiscal 2014, following a full review of its manufacturing footprint and in an effort to realign its manufacturing capacity and costs with expected net sales, the Company initiated its plan to consolidate its production facilities to reduce the total manufacturing floor space by approximately one-third (the “Restructuring”). As part of the Restructuring, MFLEX Chengdu, along with two satellite manufacturing facilities in Suzhou, China, will be consolidated into the Company’s two main manufacturing plants under MFC in Suzhou. In addition, as part of the Restructuring, the Company expects to close MFE located in Cambridge, United Kingdom and realign headcount at its other locations.
	During the three months ended March 31, 2014, the Company’s manufacturing facility in Chengdu, China ceased operations and met the criteria to be classified as assets held for sale per the relevant authoritative FASB guidance.  In addition, machinery and equipment at the Chengdu location and certain machinery and equipment and other fixed assets located at facilities in Suzhou, China ceased use and also met the held for sale criteria.  Certain assets that the Company plans to dispose of as part of the Restructuring at the Company’s satellite facilities in Suzhou and the United Kingdom continue to meet the held for use criteria as of March 31, 2014.
	As a result of the Restructuring, the Company recorded the following impairment and restructuring charges for the three months ended March 31, 2014:
			Three Months
			Ended March 31, 2014
	Asset impairments	$	11,549
	One-time termination benefits		8,664
	Other costs		4,585
	Impairment and restructuring	$	24,798
	As the Company continues to execute the Restructuring, it anticipates additional long-lived asset impairments and restructuring charges may be required for assets that will meet the held for sale criteria in future periods, one-time termination benefits for additional potential terminated employees and other charges, primarily in the third quarter of fiscal 2014. Total charges in connection with the Restructuring are expected to be at the low end of the range of $40,000 to $60,000 previously reported.
	Long-Lived Asset Impairment
	Based on the Company’s Restructuring plan, the Company determined that a triggering event to test its long-lived assets for recoverability existed during the second quarter of fiscal 2014. The Company’s long-lived assets consisted primarily of property, plant and equipment and other assets.
	Assets Held For Use
	For assets classified as held for use, consisting of all property and equipment not held for sale, the Company compared its calculation of the undiscounted cash flows to the carrying value of the assets and concluded that no instances of impairment were identified as of March 31, 2014. As the Company continues to execute the Restructuring, it will monitor its forecasted undiscounted cash flows in order to test held for use assets.
	Assets Held For Sale
	For assets classified as held for sale, consisting of our manufacturing facility in Chengdu and other fixed assets in Chengdu and Suzhou, China, the Company compared the estimated fair value less costs to sell to the carrying value of the assets. If the estimated fair value less costs to sell exceeded the carrying amount, no impairment expense was recorded. However, if the estimated fair value less costs to sell was less than the carrying amount, an impairment expense of the difference was recorded. As a result, the Company concluded that certain assets held for sale were impaired, and a pre-tax non-cash impairment charge of $11,549 was recorded during the three months ended March 31, 2014 (of which $9,141 was related to land use rights and buildings, $2,316 related to machinery and equipment and $92 related to other property, plant and equipment).
	Other Restructuring-related Costs
	A pre-tax restructuring charge of $13,249 was recorded during the second quarter of fiscal 2014, which included $8,664 of one-time termination benefits, $1,203 of contract termination costs and $3,382 of other costs (of which $198 was non-cash).
	The following table reflects the movement activity of the restructuring reserve for the three months ended March 31, 2014:
			One-Time Termination Benefits		Contract Termination Costs		Other Costs		Total Accrued Restructuring
	Accrued at December 31, 2013	$	—	$	—	$	—	$	—
	Restructuring expense		8,664		1,203		3,184		13,051
	Amount paid		-5,199		-66		-15		-5,280
	Accrued at March 31, 2014	$	3,465	$	1,137	$	3,169	$	7,771

Basis_of_Presentation_Policies

Basis of Presentation (Policies)	6 Months Ended
	Mar. 31, 2014
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. The Company has two wholly owned subsidiaries located in China: MFLEX Suzhou Co., Ltd., (“MFC”) and MFLEX Chengdu Co., Ltd. (“MFLEX Chengdu”); one located in the Cayman Islands: M-Flex Cayman Islands, Inc. (“MFCI”); one located in Singapore: Multi-Fineline Electronix Singapore Pte. Ltd. (“MFLEX Singapore”); one located in Malaysia: Multi-Fineline Electronix Malaysia Sdn. Bhd. (“MFM”); one located in Cambridge, England: MFLEX UK Limited (“MFE”); one located in Korea: MFLEX Korea, Ltd. (“MKR”); and one located in the Netherlands: MFLEX B.V. (“MNE”). All significant intercompany transactions and balances have been eliminated in consolidation.
	Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s 2013 Annual Report on Form 10-K. The financial information presented in the accompanying statements reflects all adjustments that are, in the opinion of management, necessary for a fair statement of the periods indicated. All such adjustments are of a normal recurring nature. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. Operating results for the three and six months ended March 31, 2014 are not necessarily indicative of the results that may be expected for the fiscal year ending September 30, 2014. Unless otherwise indicated, the financial information in these notes is presented in thousands (except per share amounts).
Fair Value Measurements	'
	Fair Value Measurements
	The carrying amounts of certain of the Company’s financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximated fair value due to their short maturities. For recognition purposes, on a recurring basis, the Company’s assets and liabilities related to money market funds and derivative financial instruments are measured at fair value at the end of each reporting period. The fair value of the Company’s money market funds were measured using Level 1 fair value inputs and the fair value of the Company’s derivative assets and liabilities were measured using Level 2 fair value inputs, which consisted of observable market-based inputs of foreign currency spot and forward rates quoted by major financial institutions.
	The Company’s assets and liabilities measured at fair value on a recurring basis subject to the disclosure requirements as defined under the Financial Accounting Standards Board (“FASB”) authoritative accounting guidance were as follows:
		Fair Value Measurements of Assets and Liabilities
		on a Recurring Basis as of
		March 31, 2014
		Level 1				Level 2			Level 3
	Money market funds (cash and cash equivalents)	$	14,800			$	-		$	-
	Forward contracts (accrued liabilities)		-				471			-
		$	14,800			$	471		$	-
		Fair Value Measurements of Assets and Liabilities
		on a Recurring Basis as of
		September 30, 2013
		Level 1				Level 2			Level 3
	Money market funds (cash and cash equivalents)	$	14,141			$	-		$	-
	Forward contracts (other current assets)		-				179			-
	Forward contracts (accrued liabilities)		-				(34	)		-
		$	14,141			$	145		$	-
	As of March 31, 2014, assets held for sale were measured at fair value on a non-recurring basis for the Company's single reporting unit. Based on the relevant FASB guidance, the carrying value of assets held for sale was written down to $9,569 after recording a non-cash impairment charge of $11,549 during the three months ended March 31, 2014 (refer to Note 8). The fair value of the assets was determined using Level 3 unobservable inputs not corroborated by market data, consisting of third-party offers for the building and equipment. Below is a summary of the Company’s assets measured at fair value on a non-recurring basis as of March 31, 2014:
		Fair Value Measurements of Assets
		on a Non-Recurring Basis as of
		March 31, 2014
		Level 1		Level 2		Level 3
	Building and equipment (assets held for sale)	$	—	$	—	$	9,569
		$	—	$	—	$	9,569
	No assets or liabilities were measured at fair value on a non-recurring basis as of September 30, 2013.
Inventories	'
	Inventories
	Inventories, net of applicable write-downs, were composed of the following:
		March 31,				September 30,
		2014				2013
	Raw materials and supplies	$	15,260			$	27,080
	Work-in-progress		14,316				20,965
	Finished goods		28,204				38,808
		$	57,780			$	86,853
Property, Plant and Equipment	'
	Property, Plant and Equipment
	Property, plant and equipment, net, were composed of the following:
		March 31,				September 30,
		2014				2013
	Building	$	52,598			$	68,679
	Machinery and equipment		353,678				406,010
	Computers and capitalized software		12,663				13,014
	Leasehold improvements		14,284				14,145
	Construction-in-progress		2,262				5,307
		$	435,485			$	507,155
	Accumulated depreciation and amortization		(237,887	)			(263,099	)
		$	197,598			$	244,056
Accrued Liabilities	'
	Accrued Liabilities
	Accrued liabilities were composed of the following:
		March 31,				September 30,
		2014				2013
	Wages and compensation	$	10,109			$	16,822
	Restructuring expenses¹		7,771				-
	Other accrued expenses		18,178				14,637
		$	36,058			$	31,459
	1	Refer to Note 8 for further information on the Company’s impairment and restructuring activities during the three months ended March 31, 2014.
Product Warranty Accrual	'
	Product Warranty Accrual
	Changes in the product warranty accrual for the three months ended March 31, 2014 and 2013 were as follows:
		Balance at				Warranty			Provision for			Balance at
		January 1				Expenditures			Estimated			March 31
									Warranty Cost
	Fiscal 2014	$	1,452			$	(1,234	)	$	1,596		$	1,814
	Fiscal 2013	$	315			$	(425	)	$	333		$	223
	Changes in the product warranty accrual for the six months ended March 31, 2014 and 2013 were as follows:
		Balance at				Warranty			Provision for			Balance at
		October 1				Expenditures			Estimated			March 31
									Warranty Cost
	Fiscal 2014	$	1,076			$	(2,245	)	$	2,983		$	1,814
	Fiscal 2013	$	346			$	(826	)	$	703		$	223
Net Income Per Share-Basic and Diluted	'
	Net Income Per Share—Basic and Diluted
	The following table presents a reconciliation of basic and diluted shares for the three and six months ended March 31, 2014 and 2013:
		Three Months Ended							Six Months Ended
		March 31,							March 31,
		2014				2013			2014			2013
	Basic weighted-average number of common shares outstanding		24,090,754				23,798,587			24,087,306			23,796,966
	Dilutive effect of potential common shares		-				-			-			-
	Diluted weighted-average number of common and potential		24,090,754				23,798,587			24,087,306			23,796,966
	common shares outstanding
	Potential common shares excluded from the per share		934,394				831,603			870,692			838,621
	computations as the effect of their inclusion would not
	be dilutive
Commitments and Contingencies	'
	Commitments and Contingencies
	Litigation
	The Company is involved in litigation from time to time in the ordinary course of business. Management does not believe the outcome of any currently pending matters will have a material adverse effect on the Company’s financial position, results of operations or cash flows.
	Other Commitments
	The Company has outstanding purchase and other commitments, which exclude amounts already recorded on the Condensed Consolidated Balance Sheets. The outstanding purchase commitments to acquire capital assets and other materials and services totaled $7,889 and $6,454 as of March 31, 2014 and September 30, 2013, respectively.
	Pursuant to the laws applicable to the People’s Republic of China’s Foreign Investment Enterprises, the Company’s two wholly owned subsidiaries in China, MFC and MFLEX Chengdu, are restricted from paying cash dividends on 10% of after-tax statutory profit, subject to certain cumulative limits. These restrictions as of March 31, 2014 and September 30, 2013 were $19,825 and $19,838, respectively.
Significant Concentrations	'
	Significant Concentrations
	The Company’s net sales into its largest industry sectors, as a percentage of total net sales, are presented below:
		Three Months Ended							Six Months Ended
		March 31,							March 31,
		2014				2013			2014			2013
	Smartphones		74	%			65	%		74	%		67	%
	Tablets		11	%			28	%		15	%		26	%
	Consumer electronics		10	%			5	%		8	%		6	%

Basis_of_Presentation_Tables

Basis of Presentation (Tables)	6 Months Ended
	Mar. 31, 2014
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	'
	The Company’s assets and liabilities measured at fair value on a recurring basis subject to the disclosure requirements as defined under the Financial Accounting Standards Board (“FASB”) authoritative accounting guidance were as follows:
		Fair Value Measurements of Assets and Liabilities
		on a Recurring Basis as of
		March 31, 2014
		Level 1				Level 2			Level 3
	Money market funds (cash and cash equivalents)	$	14,800			$	-		$	-
	Forward contracts (accrued liabilities)		-				471			-
		$	14,800			$	471		$	-
		Fair Value Measurements of Assets and Liabilities
		on a Recurring Basis as of
		September 30, 2013
		Level 1				Level 2			Level 3
	Money market funds (cash and cash equivalents)	$	14,141			$	-		$	-
	Forward contracts (other current assets)		-				179			-
	Forward contracts (accrued liabilities)		-				(34	)		-
		$	14,141			$	145		$	-
Schedule of Assets Held For Sale Measured at Fair Value on Nonrecurring Basis	'
	Below is a summary of the Company’s assets measured at fair value on a non-recurring basis as of March 31, 2014:
		Fair Value Measurements of Assets
		on a Non-Recurring Basis as of
		March 31, 2014
		Level 1		Level 2		Level 3
	Building and equipment (assets held for sale)	$	—	$	—	$	9,569
		$	—	$	—	$	9,569
Components of Inventories, Net of Applicable Write-Downs	'
	Inventories, net of applicable write-downs, were composed of the following:
		March 31,				September 30,
		2014				2013
	Raw materials and supplies	$	15,260			$	27,080
	Work-in-progress		14,316				20,965
	Finished goods		28,204				38,808
		$	57,780			$	86,853
Components of Property, Plant and Equipment	'
	Property, plant and equipment, net, were composed of the following:
		March 31,				September 30,
		2014				2013
	Building	$	52,598			$	68,679
	Machinery and equipment		353,678				406,010
	Computers and capitalized software		12,663				13,014
	Leasehold improvements		14,284				14,145
	Construction-in-progress		2,262				5,307
		$	435,485			$	507,155
	Accumulated depreciation and amortization		(237,887	)			(263,099	)
		$	197,598			$	244,056
Schedule of Accrued Liabilities	'
	Accrued liabilities were composed of the following:
		March 31,				September 30,
		2014				2013
	Wages and compensation	$	10,109			$	16,822
	Restructuring expenses¹		7,771				-
	Other accrued expenses		18,178				14,637
		$	36,058			$	31,459
	1	Refer to Note 8 for further information on the Company’s impairment and restructuring activities during the three months ended March 31, 2014.
Changes in the Product Warranty Accrual	'
	Changes in the product warranty accrual for the three months ended March 31, 2014 and 2013 were as follows:
		Balance at				Warranty			Provision for			Balance at
		January 1				Expenditures			Estimated			March 31
									Warranty Cost
	Fiscal 2014	$	1,452			$	(1,234	)	$	1,596		$	1,814
	Fiscal 2013	$	315			$	(425	)	$	333		$	223
	Changes in the product warranty accrual for the six months ended March 31, 2014 and 2013 were as follows:
		Balance at				Warranty			Provision for			Balance at
		October 1				Expenditures			Estimated			March 31
									Warranty Cost
	Fiscal 2014	$	1,076			$	(2,245	)	$	2,983		$	1,814
	Fiscal 2013	$	346			$	(826	)	$	703		$	223
Reconciliation of Basic and Diluted Shares	'
	The following table presents a reconciliation of basic and diluted shares for the three and six months ended March 31, 2014 and 2013:
		Three Months Ended							Six Months Ended
		March 31,							March 31,
		2014				2013			2014			2013
	Basic weighted-average number of common shares outstanding		24,090,754				23,798,587			24,087,306			23,796,966
	Dilutive effect of potential common shares		-				-			-			-
	Diluted weighted-average number of common and potential		24,090,754				23,798,587			24,087,306			23,796,966
	common shares outstanding
	Potential common shares excluded from the per share		934,394				831,603			870,692			838,621
	computations as the effect of their inclusion would not
	be dilutive
Company's Sales into its Largest Industry Sectors	'
	The Company’s net sales into its largest industry sectors, as a percentage of total net sales, are presented below:
		Three Months Ended							Six Months Ended
		March 31,							March 31,
		2014				2013			2014			2013
	Smartphones		74	%			65	%		74	%		67	%
	Tablets		11	%			28	%		15	%		26	%
	Consumer electronics		10	%			5	%		8	%		6	%

Lines_of_Credit_Tables

Lines of Credit (Tables)	6 Months Ended
	Mar. 31, 2014
Summary of the Lines of Credit	'
	A summary of the lines of credit is as follows:
		Amounts Available at				Amounts Outstanding at
		March 31,		September 30,		March 31,		September 30,
		2014		2013		2014		2013
	Line of credit (ABC)	$	32,509	$	32,531	$	-	$	-
	Line of credit (CCB)		48,764		48,796		-		-
	Line of credit (BC)		-		11,000		-		-
	Line of credit (JPM)		-		50,000		-		-
		$	81,273	$	142,327	$	-	$	-

Segment_Information_Tables

Segment Information (Tables)	6 Months Ended
	Mar. 31, 2014
Financial Information by Geographic Segment	'
	Financial information by geographic segment is as follows:
		Three Months Ended						Six Months Ended
		March 31,						March 31,
		2014			2013			2014			2013
	Net sales
	United States	$	3,519		$	2,973		$	8,629		$	5,855
	China		110,559			138,704			338,016			441,160
	Singapore		94,239			169,586			288,264			454,687
	Other		3,244			411			4,953			464
	Eliminations		(93,768	)		(138,000	)		(310,397	)		(438,842	)
	Total	$	117,793		$	173,674		$	329,465		$	463,324
	Operating (loss) income
	United States	$	(2,045	)	$	(1,599	)	$	(3,723	)	$	(4,194	)
	China		(20,170	)		(12,963	)		(8,561	)		(1,998	)
	Singapore		(24,333	)		(12,094	)		(42,612	)		(11,461	)
	Other		(1,070	)		(718	)		(1,655	)		(1,534	)
	Eliminations		365			1,052			1,088			3,326
	Total	$	(47,253	)	$	(26,322	)	$	(55,463	)	$	(15,861	)
	Depreciation and amortization
	United States	$	327		$	647		$	674		$	1,297
	China		13,292			14,015			25,718			27,717
	Singapore		33			36			66			59
	Other		35			42			50			85
	Total	$	13,687		$	14,740		$	26,508		$	29,158
		March 31,			September 30,
		2014			2013
	Total assets
	United States	$	138,750		$	136,299
	China		350,371			403,824
	Singapore		233,630			295,714
	Other		10,480			2,022
	Eliminations		(230,817	)		(227,645	)
	Total	$	502,414		$	610,214

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	6 Months Ended
	Mar. 31, 2014
Grant Date Fair Values of Awards	'
	The grant date fair values of the portion of the November 2013 Awards and the December 2013 Awards containing both market and performance conditions were calculated utilizing the following assumptions:
		November 2013			Nasdaq Total Return			December 2013			Nasdaq Total Return
		Awards			Index Benchmark			Awards			Index Benchmark
					Inputs						Inputs
	Expected stock return/ discount rate1		0.65	%		0.65	%		0.7	%		0.7	%
	Dividend yield		—			—			—			—
	Volatility2		40	%		20	%		40	%		20	%
	Grant date		11/30/13			11/30/13			12/19/13			12/19/13
	Three-month average	$	14.6		$	4,194.45		$	14.6		$	4,194.45
	share price3
	Expected vesting period		3.1			N/A			3			N/A
	(in years)
	Correlation		0.48			0.48			0.48			0.48
	Fair value per share	$	8.28			N/A		$	6.7			N/A
	1	The expected stock return/discount rate was based on the yield to maturity of short-term government bonds over the expected term as of the grant date.
	2	Volatilities were calculated as of fiscal year end dates for the Company.
	3	The three-month daily average share price was based on the average of the three-month daily closing price for the Company’s common stock and the Nasdaq Total Return Index as of November 30, 2013.
Restricted Stock Units Activity	'
	RSU activity for the six months ended March 31, 2014 under the 2004 Plan and 2014 Plan is summarized as follows:
		Number of				Weighted
		Shares				-Average
						Grant-Date
						Fair Value
	Non-vested shares outstanding at September 30, 2013		336,374			$	17.55
	Granted		584,333				11.44
	Vested		(1,745	)			13.57
	Canceled		(33,675	)			16.14
	Non-vested shares outstanding at March 31, 2014		885,287			$	13.58
Restricted Stock Units Details	'
	RSU details for the three and six months ended March 31, 2014 and 2013 are summarized as follows:
		Three Months Ended March 31,								Six Months Ended March 31,
		2014				2013				2014				2013
	Service-based RSUs granted		49,116				26,620				322,488				205,811
	Performance-based RSUs granted		-				-				261,845				72,031
	Compensation cost recognized	$	954			$	977			$	1,575			$	1,986
	Weighted-average grant-date fair value of non-vested RSUs granted	$	13.89			$	15.27			$	11.44			$	18.18
	Weighted-average grant-date fair value of RSUs vested	$	13.57			$	26.93			$	13.57			$	22.99
	Aggregate intrinsic value of RSUs vested	$	25			$	328			$	25			$	2,512
Summary of Compensation Expense	'
	The following table shows a summary of the stock-based compensation expense by expense type included in the Condensed Consolidated Statements of Comprehensive Income for the three and six months ended March 31, 2014 and 2013:
		Three Months Ended								Six Months Ended
		March 31,								March 31,
		2014				2013				2014				2013
	Cost of sales	$	62			$	133			$	117			$	266
	Research and development		108				151				181				306
	Sales and marketing		149				179				252				392
	General and administrative		635				778				1,025				1,584
	Total	$	954			$	1,241			$	1,575			$	2,548

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	6 Months Ended
	Mar. 31, 2014
The Aggregate Notional Amount of Outstanding Foreign Currency Forward Contracts	'
	As of March 31, 2014, the aggregate notional amount of the Company’s outstanding foreign currency forward contracts is summarized below:
	Currency	Buy/		Foreign		Notional
		Sell		Currency		Contract
				Amount		Value in
						USD
	Foreign currency non-hedge derivatives:
	RMB		Buy	¥	244,736	$	40,000

Impairment_and_Restructuring_T

Impairment and Restructuring (Tables)	3 Months Ended
	Mar. 31, 2014
Schedule of Impairment and Restructuring Charges	'
	As a result of the Restructuring, the Company recorded the following impairment and restructuring charges for the three months ended March 31, 2014:
			Three Months
			Ended March 31, 2014
	Asset impairments	$	11,549
	One-time termination benefits		8,664
	Other costs		4,585
	Impairment and restructuring	$	24,798
Activity of Restructuring Reserve	'
	The following table reflects the movement activity of the restructuring reserve for the three months ended March 31, 2014:
			One-Time Termination Benefits		Contract Termination Costs		Other Costs		Total Accrued Restructuring
	Accrued at December 31, 2013	$	—	$	—	$	—	$	—
	Restructuring expense		8,664		1,203		3,184		13,051
	Amount paid		-5,199		-66		-15		-5,280
	Accrued at March 31, 2014	$	3,465	$	1,137	$	3,169	$	7,771

Description_of_Business_Additi

Description of Business - Additional Information (Detail)	Mar. 31, 2014	Sep. 30, 2013
Basis Of Presentation [Abstract]	'	'
Percentage of shares owned by affiliates and subsidiaries of WBL Corporation Limited	62.00%	62.00%

Basis_of_Presentation_Addition

Basis of Presentation - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended
	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2013	Sep. 30, 2013
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'	'
Carrying value of assets held for sale	$9,569,000	$9,569,000	'	$0
Asset impairments	11,549,000	11,549,000	0	'
Assets measured at fair value on a non-recurring basis	'	'	'	0
Liabilities measured at fair value on a non-recurring basis	'	'	'	0
Outstanding purchase and other commitments	7,889,000	7,889,000	'	6,454,000
Restrictions on net income	$19,825,000	$19,825,000	'	$19,838,000
Percentage of restricted after-tax profits from paying cash dividends	10.00%	'	'	'
China	'	'	'	'
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'	'
Number of wholly owned subsidiaries	2	2	'	'
Cayman	'	'	'	'
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'	'
Number of wholly owned subsidiaries	1	1	'	'
Singapore	'	'	'	'
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'	'
Number of wholly owned subsidiaries	1	1	'	'
Malaysia	'	'	'	'
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'	'
Number of wholly owned subsidiaries	1	1	'	'
England	'	'	'	'
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'	'
Number of wholly owned subsidiaries	1	1	'	'
Korea	'	'	'	'
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'	'
Number of wholly owned subsidiaries	1	1	'	'
Netherlands	'	'	'	'
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'	'
Number of wholly owned subsidiaries	1	1	'	'

Basis_of_Presentation_Schedule

Basis of Presentation - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) (Fair Value, Measurements, Recurring, USD $)	Mar. 31, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified
Level 1	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Fair value net assets liabilities, Total	$14,800	$14,141
Level 2	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Fair value net assets liabilities, Total	471	145
Level 2 | Forward contracts	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Forward contracts (accrued liabilities)	471	-34
Forward contracts (other current assets)	'	179
Money market funds | Level 1	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Money market funds (cash and cash equivalents)	$14,800	$14,141

Basis_of_Presentation_Schedule1

Basis of Presentation - Schedule of Assets Held For Sale Measured at Fair Value on Nonrecurring Basis (Detail) (USD $)	Sep. 30, 2013	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014
		Fair Value, Measurements, Nonrecurring	Fair Value, Measurements, Nonrecurring	Fair Value, Measurements, Nonrecurring	Fair Value, Measurements, Nonrecurring	Fair Value, Measurements, Nonrecurring	Fair Value, Measurements, Nonrecurring
		Level 1	Level 1	Level 2	Level 2	Level 3	Level 3
			Assets Held for Sale		Assets Held for Sale		Assets Held for Sale
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'	'	'	'	'	'
Building and equipment	$0	'	'	'	'	$9,569,000	$9,569,000

Basis_of_Presentation_Componen

Basis of Presentation - Components of Inventories, Net of Applicable Write-Downs (Detail) (USD $)	Mar. 31, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified
Inventory, Net [Abstract]	'	'
Raw materials and supplies	$15,260	$27,080
Work-in-progress	14,316	20,965
Finished goods	28,204	38,808
Inventories, net	$57,780	$86,853

Basis_of_Presentation_Componen1

Basis of Presentation - Components of Property, Plant and Equipment (Detail) (USD $)	Mar. 31, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	$435,485	$507,155
Accumulated depreciation and amortization	-237,887	-263,099
Property, plant and equipment, net	197,598	244,056
Building	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	52,598	68,679
Machinery and equipment	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	353,678	406,010
Computers and capitalized software	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	12,663	13,014
Leasehold improvements	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	14,284	14,145
Construction-in-progress	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	$2,262	$5,307

Basis_of_Presentation_Schedule2

Basis of Presentation - Schedule of Accrued Liabilities (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Basis Of Presentation And Significant Accounting Policies [Line Items]	'	'	'
Wages and compensation	$10,109	'	$16,822
Restructuring expensesB9	7,771	'	'
Other accrued expenses	18,178	'	14,637
Accrued liabilities, current	$36,058	'	$31,459

Basis_of_Presentation_Changes_

Basis of Presentation - Changes in the Product Warranty Accrual (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Guarantee Obligations [Line Items]	'	'	'	'
Beginning Balance	$1,452	$315	$1,076	$346
Warranty Expenditures	-1,234	-425	-2,245	-826
Provision for Estimated Warranty Cost	1,596	333	2,983	703
Ending Balance	$1,814	$223	$1,814	$223

Basis_of_Presentation_Reconcil

Basis of Presentation - Reconciliation of Basic and Diluted Shares (Detail)	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Weighted Average Number Of Shares Outstanding Diluted Disclosure Items [Abstract]	'	'	'	'
Basic	24,090,754	23,798,587	24,087,306	23,796,966
Dilutive effect of potential common shares	'	'	'	'
Diluted weighted-average number of common and potential common shares outstanding	24,090,754	23,798,587	24,087,306	23,796,966
Potential common shares excluded from the per share computations as the effect of their inclusion would not be dilutive	934,394	831,603	870,692	838,621

Basis_of_Presentation_Companys

Basis of Presentation - Company's Sales into its Largest Industry Sectors (Detail)	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Smartphones	'	'	'	'
Sales Concentration [Line Items]	'	'	'	'
Percentage of net sales to largest industry sectors	74.00%	65.00%	74.00%	67.00%
Tablets	'	'	'	'
Sales Concentration [Line Items]	'	'	'	'
Percentage of net sales to largest industry sectors	11.00%	28.00%	15.00%	26.00%
Consumer electronics	'	'	'	'
Sales Concentration [Line Items]	'	'	'	'
Percentage of net sales to largest industry sectors	10.00%	5.00%	8.00%	6.00%

Lines_of_Credit_Additional_Inf

Lines of Credit - Additional Information (Detail)

Mar. 31, 2014

Sep. 30, 2013

Mar. 31, 2014

Sep. 30, 2013

Jul. 31, 2013

Mar. 31, 2014

Sep. 30, 2013

31-May-13

Mar. 31, 2013

Mar. 31, 2014

Sep. 30, 2013

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

Jan. 31, 2012

In Thousands, unless otherwise specified

USD ($)

USD ($)

Agricultural Bank of China

Agricultural Bank of China

Agricultural Bank of China

China Construction Bank

China Construction Bank

China Construction Bank

Bank of China

Bank of China

Bank of China

J P Morgan Chase Bank

J P Morgan Chase Bank

J P Morgan Chase Bank

J P Morgan Chase Bank

J P Morgan Chase Bank

USD ($)

USD ($)

CNY

USD ($)

USD ($)

CNY

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Line Of Credit Facility [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Borrowing capacity under Line of Credit Agreement

'

'

'

'

200,000

'

'

300,000

$11,000

'

'

'

'

'

'

$50,000

Line of credit, amount available

81,273

142,327

32,509

32,531

'

48,764

48,796

'

'

'

11,000

'

'

'

50,000

'

Line of credit, maturity date

'

'

30-Jul-16

'

'

5-May-16

'

'

5-Feb-14

'

'

5-Feb-14

'

'

'

'

Line of credit, Amount Outstanding

'

'

'

'

'

'

'

'

'

'

'

'

'

$0

'

'

Lines_of_Credit_Summary_of_the

Lines of Credit - Summary of the Lines of Credit (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Line Of Credit Facility [Line Items]	'	'	'
Line of credit, amount available	$81,273	'	$142,327
Line of credit, Amount Outstanding	'	'	'
Agricultural Bank of China	'	'	'
Line Of Credit Facility [Line Items]	'	'	'
Line of credit, amount available	32,509	'	32,531
Line of credit, Amount Outstanding	'	'	'
China Construction Bank	'	'	'
Line Of Credit Facility [Line Items]	'	'	'
Line of credit, amount available	48,764	'	48,796
Line of credit, Amount Outstanding	'	'	'
Bank of China	'	'	'
Line Of Credit Facility [Line Items]	'	'	'
Line of credit, amount available	'	'	11,000
Line of credit, Amount Outstanding	'	'	'
J P Morgan Chase Bank	'	'	'
Line Of Credit Facility [Line Items]	'	'	'
Line of credit, amount available	'	'	50,000
Line of credit, Amount Outstanding	'	$0	'

Segment_Information_Additional

Segment Information - Additional Information (Detail)	6 Months Ended
	Mar. 31, 2014
	Segment
Segment Reporting Information [Line Items]	'
Number of reportable segment	1
Number of geographical segment	4

Segment_Information_Financial_

Segment Information - Financial Information by Geographic Segment (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Sep. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Net sales	$117,793	$173,674	$329,465	$463,324	'
Operating (loss) income	-47,253	-26,322	-55,463	-15,861	'
Depreciation and amortization	13,687	14,740	26,508	29,158	'
Total assets	502,414	'	502,414	'	610,214
United States	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Net sales	3,519	2,973	8,629	5,855	'
Operating (loss) income	-2,045	-1,599	-3,723	-4,194	'
Depreciation and amortization	327	647	674	1,297	'
Total assets	138,750	'	138,750	'	136,299
China	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Net sales	110,559	138,704	338,016	441,160	'
Operating (loss) income	-20,170	-12,963	-8,561	-1,998	'
Depreciation and amortization	13,292	14,015	25,718	27,717	'
Total assets	350,371	'	350,371	'	403,824
Singapore	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Net sales	94,239	169,586	288,264	454,687	'
Operating (loss) income	-24,333	-12,094	-42,612	-11,461	'
Depreciation and amortization	33	36	66	59	'
Total assets	233,630	'	233,630	'	295,714
Other	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Net sales	3,244	411	4,953	464	'
Operating (loss) income	-1,070	-718	-1,655	-1,534	'
Depreciation and amortization	35	42	50	85	'
Total assets	10,480	'	10,480	'	2,022
Eliminations	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Net sales	-93,768	-138,000	-310,397	-438,842	'
Operating (loss) income	365	1,052	1,088	3,326	'
Total assets	($230,817)	'	($230,817)	'	($227,645)

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Nov. 11, 2013

Dec. 19, 2013

In Thousands, except Share data, unless otherwise specified

Restricted Stock Unit Service-Based

Restricted Stock Unit Service-Based

Restricted Stock Unit Service-Based

Restricted Stock Unit Service-Based

Restricted Stock

Restricted Stock

Restricted Stock

Restricted Stock

Restricted Stock Unit Performance-Based

2014 Equity Incentive Plan

November 2013 Awards

December 2013 Awards

Restricted Stock Unit Performance-Based

Restricted Stock Unit Performance-Based

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares authorized for issuance

'

'

'

'

'

'

'

'

'

'

1,639,279

'

'

Shares available for future grant of awards

2,062,007

'

'

'

'

'

'

'

'

'

'

'

'

Number of hypothetical shares

'

1

1

1

1

'

'

'

'

'

'

'

'

Vesting period

'

'

'

'

'

'3 years

'3 years

'3 years

'3 years

'

'

'

'

RSUs Vesting period

'

'

'

'

'

'one-third

'one-third

'one-third

'one-third

'

'

'

'

Probability threshold

'

'

'

'

'

'

'

'

'

70.00%

'

'

'

Performance-based restricted stock units granted

'

'

'

'

'

'

'

'

'

'

'

183,292

78,553

Unearned compensation

'

'

'

'

'

$7,529

'

$7,529

'

'

'

'

'

Weighted-average remaining contractual life of non-vested RSUs

'

'

'

'

'

'

'

'1 year 8 months 12 days

'

'

'

'

'

StockBased_Compensation_Grant_

Stock-Based Compensation - Grant Date Fair Values of Awards (Detail) (USD $)	6 Months Ended
	Mar. 31, 2014
November 2013 Awards	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Expected stock return/ discount rate	0.65%
Dividend yield	'
Volatility	40.00%
Grant date	30-Nov-13
Three-month average share price	$14.60
Expected vesting period (in years)	'3 years 1 month 6 days
Correlation	0.48
Fair value per share	$8.28
December 2013 Awards	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Expected stock return/ discount rate	0.70%
Dividend yield	'
Volatility	40.00%
Grant date	19-Dec-13
Three-month average share price	$14.60
Expected vesting period (in years)	'3 years
Correlation	0.48
Fair value per share	$6.70
Nasdaq Total Return Index Benchmark Inputs | November 2013 Awards	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Expected stock return/ discount rate	0.65%
Dividend yield	'
Volatility	20.00%
Grant date	30-Nov-13
Three-month average share price	$4,194.45
Correlation	0.48
Nasdaq Total Return Index Benchmark Inputs | December 2013 Awards	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Expected stock return/ discount rate	0.70%
Dividend yield	'
Volatility	20.00%
Grant date	19-Dec-13
Three-month average share price	$4,194.45
Correlation	0.48

StockBased_Compensation_Restri

Stock-Based Compensation - Restricted Stock Units Activity (Detail) (Restricted Stock, USD $)	6 Months Ended
	Mar. 31, 2014
Restricted Stock	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Number of Shares, Non-vested shares outstanding, Beginning Balance	336,374
Number of Shares, Granted	584,333
Number of Shares, Vested	-1,745
Number of Shares, Canceled	-33,675
Number of Shares, Non-vested shares outstanding, Ending Balance	885,287
Weighted-Average Grant-Date Fair Value of non-vested shares outstanding, Beginning Balance	$17.55
Weighted-Average grant-date fair value of non-vested RSUs, Granted	$11.44
Weighted-Average Grant-Date Fair Value, Vested	$13.57
Weighted-Average Grant-Date Fair Value, Canceled	$16.14
Weighted-Average Grant-Date Fair Value of non-vested shares outstanding, Ending Balance	$13.58

StockBased_Compensation_Restri1

Stock-Based Compensation - Restricted Stock Units Details (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'
Compensation cost recognized	$954	$1,241	$1,575	$2,548
Service-based RSUs	'	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'
Number of Shares, Granted	49,116	26,620	322,488	205,811
Performance-based RSUs	'	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'
Number of Shares, Granted	'	'	261,845	72,031
Restricted Stock Units RSU	'	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'
Compensation cost recognized	954	977	1,575	1,986
Weighted-average grant-date fair value of non-vested RSUs granted	$13.89	$15.27	$11.44	$18.18
Weighted-average grant-date fair value of RSUs vested	$13.57	$26.93	$13.57	$22.99
Aggregate intrinsic value of RSUs vested	$25	$328	$25	$2,512

StockBased_Compensation_Summar

Stock-Based Compensation - Summary of Compensation Expense (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Total compensation cost	$954	$1,241	$1,575	$2,548
Cost of sales	'	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Total compensation cost	62	133	117	266
Research and development	'	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Total compensation cost	108	151	181	306
Sales and marketing	'	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Total compensation cost	149	179	252	392
General and administrative	'	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'	'
Total compensation cost	$635	$778	$1,025	$1,584

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2014	Sep. 30, 2013
Income Taxes Disclosure [Line Items]	'	'	'
Liability for income taxes associated with uncertain tax positions, Gross	$15,666	$15,666	$15,425
Liability for income taxes associated with uncertain tax positions, Net	10,744	10,744	10,517
Valuation allowance	5,001	'	'
Additional taxable income	'	$32,363	'
Income tax examination number of years under examination	'	'2 years	'
Minimum	'	'	'
Income Taxes Disclosure [Line Items]	'	'	'
Income tax, year under examination	'	'2007	'
Maximum	'	'	'
Income Taxes Disclosure [Line Items]	'	'	'
Income tax, year under examination	'	'2010	'

Derivative_Financial_Instrumen2

Derivative Financial Instruments - The Aggregate Notional Amount of Outstanding Foreign Currency Forward Contracts (Detail)	Mar. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified	Foreign Currency Amount	Notional Contract Value in USD
	CNY	USD ($)
Foreign currency non-hedge derivatives:	'	'
RMB Buy	244,736	$40,000

Derivative_Financial_Instrumen3

Derivative Financial Instruments - Additional Information (Detail) (Notional Contract Value in USD, Foreign Currency Amount, USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Notional Contract Value in USD | Foreign Currency Amount	'	'	'	'
Derivative Instruments And Hedging Activities Disclosures [Line Items]	'	'	'	'
Net losses due to changes in fair value of derivative financial instruments	$544	$50	$130	$50

Impairment_and_Restructuring_S

Impairment and Restructuring - Summary of Impairment and Restructuring Charges (Detail) (USD $)	3 Months Ended	6 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2013
Restructuring Cost And Reserve [Line Items]	'	'	'
Asset impairments	$11,549	$11,549	$0
One-time termination benefits	8,664	'	'
Other costs	4,585	'	'
Impairment and restructuring	$24,798	$24,798	'

Impairment_and_Restructuring_A

Impairment and Restructuring - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2013
Restructuring Cost And Reserve [Line Items]	'	'	'
Restructuring charges	$13,051	'	'
Impairment charges of asset	11,549	11,549	0
Pre-tax restructuring charges	13,249	'	'
One time termination benefits	8,664	'	'
Contract termination cost	1,203	'	'
Other restructuring costs	3,382	'	'
Other restructuring costs non-cash	198	'	'
Land use rights and buildings	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'
Impairment charges of asset	9,141	'	'
Machinery and equipment	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'
Impairment charges of asset	2,316	'	'
Other property, plant and equipment	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'
Impairment charges of asset	92	'	'
Minimum	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'
Restructuring charges	40,000	'	'
Maximum	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'
Restructuring charges	$60,000	'	'

Impairment_and_Restructuring_A1

Impairment and Restructuring - Activity of Restructuring Reserve (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Restructuring Cost And Reserve [Line Items]	'
Accrued at December 31, 2013	'
Restructuring charges	13,051
Amount paid	-5,280
Accrued at March 31, 2014	7,771
One-Time Termination Benefits	'
Restructuring Cost And Reserve [Line Items]	'
Accrued at December 31, 2013	'
Restructuring charges	8,664
Amount paid	-5,199
Accrued at March 31, 2014	3,465
Contract Termination	'
Restructuring Cost And Reserve [Line Items]	'
Accrued at December 31, 2013	'
Restructuring charges	1,203
Amount paid	-66
Accrued at March 31, 2014	1,137
Other Restructuring	'
Restructuring Cost And Reserve [Line Items]	'
Accrued at December 31, 2013	'
Restructuring charges	3,184
Amount paid	-15
Accrued at March 31, 2014	$3,169