Commitments and contingencies.

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Forfeiture accrual at carrying value.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility additional interest rate in event of default.

+ References

No definition available.

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- Definition

Loan agreement financial covenants maximum additional indebtedness.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Loans held by employees for investments guaranteed.

+ References

No definition available.

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- Definition

Amount the company has agreed to pay Blackstone related to the net realized cash benefit from certain compensation related tax deductions.

+ References

No definition available.

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Balance Type:	credit
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- Definition

Term loan additional interest rate in event of default.

+ References

No definition available.

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- Definition

Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

+ References

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- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

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- Definition

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

+ References

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

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- Definition

Amount of the required periodic payments applied to principal.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of when the fee for available but unused credit capacity is required to be paid (for example, annually, quarterly, or monthly).

+ References

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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Data Type:	num:percentItemType
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- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

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- Definition

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.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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- Definition

Maturity date of long-term debt, in CCYY-MM-DD format.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Commitments and Contingencies - Additional Information (Details) - USD ($)		6 Months Ended
	Oct. 01, 2018	Jun. 30, 2019	Dec. 31, 2018
Blackstone
Commitments And Contingencies [Line Items]
Loans held by employees for investments guaranteed		$ 11,500,000	$ 8,900,000
Forfeiture accrual		900,000	900,000
Tax benefit accrual		1,400,000	4,300,000
Term Loan
Commitments And Contingencies [Line Items]
Term loan commitment		$ 30,000,000
Loan Agreement
Commitments And Contingencies [Line Items]
Loan agreement financial covenants maximum additional indebtedness	$ 20,000,000.0
Loan agreement, interest rate description		Outstanding borrowings under the Term Loan bear interest equal to the greater of a per annum rate of (a) 3.25%, or (b) the prime rate minus 0.75%. During an event of default, overdue principal under both the revolving credit facility and Term Loan bear interest at a rate 2.0% in excess of the otherwise applicable rate of interest.
Loan Agreement \| Term Loan
Commitments And Contingencies [Line Items]
Term loan commitment	$ 30,000,000.0
Term loan, maturity date	Jan. 02, 2021
Term loan, principal payments	$ 4,250,000
Term loan, date of first required payment	Jul. 01, 2019
Term loan, frequency of periodic payment		quarterly
Notes payable, spread on variable prime rate	0.75%
Term loan bear interest equal to greater of per annum rate	3.25%
Term loan additional interest rate in event of default	2.00%
Loan agreement, interest rate description		Outstanding borrowings under the Term Loan bear interest equal to the greater of a per annum rate of (a) 3.25%, or (b) the prime rate minus 0.75%.
Loan Agreement \| Term Loan \| Maturing on January 2, 2021
Commitments And Contingencies [Line Items]
Term loan, principal payment of final settlement	$ 4,500,000
Revolving Credit Facility
Commitments And Contingencies [Line Items]
Revolving credit facility, amount outstanding		$ 0	$ 0
Revolving Credit Facility \| Loan Agreement
Commitments And Contingencies [Line Items]
Revolving credit facility, borrowing capacity before increase	40,000,000.0
Increase revolving credit facility	$ 60,000,000.0
Revolving credit facility, maturity date	Oct. 01, 2020
Line of credit facility bear interest equal to greater of per annum rate	3.00%
Notes payable, spread on variable prime rate	1.00%
Line of credit facility revised interest rate in event of default	2.00%
Percentage of commitment fee	0.125%
Line of credit facility, interest rate description		Outstanding borrowings under the revolving credit facility bear interest equal to the greater of a per annum rate of (a) 3%, or (b) the prime rate minus 1.0%.
Line of credit facility, frequency of commitment fee payment		quarterly