Amortized discount at annual effective rate.

No definition available.

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- Definition

Discount, period of issuance.

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No definition available.

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- Definition

Number of group of participating banks.

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No definition available.

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- Definition

Number of insignificant debt arrangement.

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No definition available.

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- Definition

Primary debt arrangements.

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No definition available.

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- Definition

Remaining period for amortization discount.

+ References

No definition available.

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- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

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-Topic 230

-SubTopic 10

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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-Publisher FASB

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-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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-Name Regulation S-X (SX)

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-Name Regulation S-X (SX)

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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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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-SubTopic 10

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-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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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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-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

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-Subparagraph (SX 210.7-03.16)

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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

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The carrying value as of the balance sheet date of the noncurrent portion 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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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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

+ References

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Debt and Financing Arrangements - Additional Information (Detail) (USD $) Share data in Millions, unless otherwise specified	0 Months Ended	3 Months Ended	12 Months Ended
	Sep. 27, 2010	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Primary financing arrangements		2cbz_NumberOfPrimaryDebtArrangements
Number of insignificant financing arrangements		1
Unsecured credit facility		$ 400,000,000us-gaap_UnsecuredLongTermDebt
Group of participating banks		8cbz_NumberOfGroupOfParticipatingBanks
Outstanding balance under applicable credit facility		146,800,000us-gaap_LongTermLineOfCredit	107,400,000us-gaap_LongTermLineOfCredit
Credit facility termination date		Jul. 28, 2014
Approximately available funds under credit facility		150,300,000
Letter of Credit and Performance Guarantee [Member]
Debt Instrument [Line Items]
Outstanding letters of credit and performance guarantees		4,200,000
2010 Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate on Notes		4.875%
Cash portion of retirement			30,600,000
Shares issued in exchange for partial retirement of debt			1.5
Partial extinguishment of debt			32,400,000
Amortized discount at annual effective rate	7.50%
Discount, period of issuance	5 years
Remaining period for amortization of discount		6 months
Aggregate outstanding principal amount		97,650,000	97,650,000
2006 Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate on Notes		3.125%
Aggregate outstanding principal amount		750,000
Maturity date of notes		Jun. 01, 2026
Credit Facility With Bank of America [Member]
Debt Instrument [Line Items]
Unsecured credit facility		$ 400,000,000