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- Definition

Debt Instrument Convertible Threshold Trading Period

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Earliest date when the debt instrument can be converted into equity, in CCYY-MM-DD format.

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- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Face (par) amount of the original debt instrument that was repurchased.

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No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

The amount of the liability for the conversion option reclassified to stockholders' equity when the embedded option no longer required separation from the host instrument.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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- Definition

Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Fair value portion of notes payable.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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Debt - Additional Information (Detail) - USD ($)			3 Months Ended		6 Months Ended
Debt - Additional Information (Detail) - USD ($)	Jun. 30, 2014	Mar. 18, 2014	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016	Jul. 31, 2016
Debt Instrument [Line Items]
Debt instrument issued			$ 67,625,000		$ 67,625,000		$ 69,625,000
Debt instrument issuance costs			815,000		815,000		1,013,000
Purchase of the Company's Convertible Notes					1,763,000
Notes payable, Fair Value			60,440,000		60,440,000		50,957,000
Debt instrument, carrying amount			57,603,000		$ 57,603,000		57,169,000
Convertible debt, remaining discount amortization period					25 months
Debt instrument, interest expense					$ 1,940,000	$ 2,473,000
PNC Bank Credit Facility
Debt Instrument [Line Items]
Line of credit facility, term	5 years
Line of credit facility, maximum credit commitment	$ 50,000,000
Credit facility expiry date					Jun. 30, 2019
Line of credit facility, unutilized commitment fee percentage	0.25%
Outstanding indebtedness under the Credit Facility			$ 0		$ 0		$ 0
Domestic Subsidiaries
Debt Instrument [Line Items]
Percentage of equity interests pledged					100.00%
Foreign Subsidiaries
Debt Instrument [Line Items]
Percentage of equity interests pledged					65.00%
Letter of Credit Sublimit \| PNC Bank Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum credit commitment	$ 5,000,000
Uncommitted Accordion Feature \| PNC Bank Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum credit commitment	$ 20,000,000
Scenario 1 \| London Interbank Offered Rate (LIBOR) \| PNC Bank Credit Facility
Debt Instrument [Line Items]
Debt instrument, percentage points added to the reference rate	2.25%
Scenario 2 \| London Interbank Offered Rate (LIBOR) \| PNC Bank Credit Facility
Debt Instrument [Line Items]
Debt instrument, percentage points added to the reference rate	1.00%
Scenario 2 \| Federal Funds Open Rate \| PNC Bank Credit Facility
Debt Instrument [Line Items]
Debt instrument, percentage points added to the reference rate	0.50%
5.25% Convertible Senior Notes due 2019
Debt Instrument [Line Items]
Debt instrument issued		$ 100,000,000
Debt instrument, stated interest rate		5.25%	0.50%		0.50%
Debt instrument, convertible, conversion ratio					166.2593
Initial Conversion price			$ 6.01		$ 6.01
Debt instrument, redemption price percentage		100.00%
Debt instrument, convertible, earliest date					Mar. 06, 2017
Debt instrument, convertible, threshold percentage of stock price trigger					130.00%
Debt instrument, convertible, threshold trading days					20 days
Debt instrument, convertible, threshold consecutive trading days					30 days
Additional interest paid			$ 200,000		$ 200,000
Debt instrument conversion option					28,100,000
Debt instrument issuance costs			3,400,000		3,400,000
Deferred debt instrument issuance costs			2,500,000		2,500,000
Debt instrument, interest expense			$ 1,976,000	$ 2,692,000	$ 3,935,000	5,338,000
Debt instrument, interest rate, effective percentage			13.90%		13.90%
Notes Payable One
Debt Instrument [Line Items]
Face amount of purchased Notes			$ 2,000,000		$ 2,000,000
Purchase of the Company's Convertible Notes			$ 1,700,000
Notes Payable Two
Debt Instrument [Line Items]
Face amount of purchased Notes				$ 0		$ 0