Debt - Narrative (Details)		6 Months Ended
May 08, 2018 USD ($)	Jun. 30, 2018 USD ($)
Debt Instrument [Line Items]
Debt issuance costs		$ 11,100,000
Line of Credit
Debt Instrument [Line Items]
Credit agreement, maximum borrowing capacity increase limit	$ 25,000,000.0
Credit agreement, maximum borrowing capacity increase limit, first lien pari passu basis leverage ratio	3.75
Credit agreement, maximum borrowing capacity increase limit, first lien junior basis leverage ratio	5.50
Commitment fee, threshold first lien leverage ratio	2.00
Mandatory prepayments, percentage of annual excess cash flow	75.00%
Mandatory prepayments, percentage of non-ordinary course asset sales or other dispositions	100.00%
Mandatory prepayments, percentage of net cash proceeds of debt incurrence	100.00%
Quarterly principal repayments	0.25%
Prepayment premium	1.00%
Interest rate		7.62%
Line of Credit \| Maximum
Debt Instrument [Line Items]
Commitment fee	0.50%
Maximum first lien net leverage ratio	5.50
Minimum interest coverage ratio	2.50
Line of Credit \| Minimum
Debt Instrument [Line Items]
Commitment fee	0.375%
Maximum first lien net leverage ratio	4.00
Minimum interest coverage ratio	1.75
Line of Credit \| Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate basis	0.50%
Line of Credit \| Eurodollar Rate
Debt Instrument [Line Items]
Variable rate basis, minimum	0.00%
Notes (primarily with related parties) \| Subordinated Notes Due 2026
Debt Instrument [Line Items]
Credit agreement, issuance percentage of par	98.00%
Principle of debt issued	$ 110,000,000.0
Debt term		8 years
Due to related parties		$ 105,000,000
Interest paid or payable to related parties		$ 2,200,000
Interest rate	14.00%
Annual increase in interest rate	1.00%
Senior Term Loan \| Line of Credit
Debt Instrument [Line Items]
Credit agreement, maximum borrowing capacity	$ 270,000,000.0
Credit agreement, issuance percentage of par	97.00%
Debt term	7 years
Senior Revolver \| Line of Credit
Debt Instrument [Line Items]
Principle of debt issued	$ 25,000,000.0
Debt term	5 years
Interest Rate Option - Basis Spread One \| Line of Credit \| Eurodollar Rate
Debt Instrument [Line Items]
Basis spread on variable rate basis	1.00%
Interest Rate Option - Basis Spread Two \| Line of Credit \| Eurodollar Rate
Debt Instrument [Line Items]
Basis spread on variable rate basis	4.25%
Interest Rate Option Two \| Line of Credit \| Eurodollar Rate
Debt Instrument [Line Items]
Basis spread on variable rate basis	5.25%
Variable rate basis, minimum	0.00%
Prior to May 8, 2019 \| Notes (primarily with related parties) \| Subordinated Notes Due 2026
Debt Instrument [Line Items]
Allowable interest payable in kind	75.00%
May 8, 2019 - May 8, 2020 \| Notes (primarily with related parties) \| Subordinated Notes Due 2026
Debt Instrument [Line Items]
Allowable interest payable in kind	50.00%
After May 8, 2020 \| Notes (primarily with related parties) \| Subordinated Notes Due 2026
Debt Instrument [Line Items]
Allowable interest payable in kind	25.00%
Before May 8, 2019 \| Notes (primarily with related parties) \| Subordinated Notes Due 2026
Debt Instrument [Line Items]
Prepayment premium	3.00%
May 8, 2019 - May 8, 2020 \| Notes (primarily with related parties) \| Subordinated Notes Due 2026
Debt Instrument [Line Items]
Prepayment premium	2.00%
May 8 2020 - May 8, 2021 \| Notes (primarily with related parties) \| Subordinated Notes Due 2026
Debt Instrument [Line Items]
Prepayment premium	1.00%
After May 8, 2021 \| Notes (primarily with related parties) \| Subordinated Notes Due 2026
Debt Instrument [Line Items]
Prepayment premium	0.00%

Debt Instrument, Allowable In Kind Payment Percentage

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- Definition

Debt Instrument, Annual Increase in Stated Percentage

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- Definition

Debt Instrument, Covenant, Interest Coverage Ratio, Minimum

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Debt Instrument, Covenant, Leverage Ratio, Maximum

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- Definition

Debt Instrument, Mandatory Prepayments, Percent Of Annual Excess Cash

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- Definition

Debt Instrument, Mandatory Prepayments, Percent of Cash Proceeds of Non Ordinary Course Assets Sales or Other Dispositions

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- Definition

Debt Instrument, Mandatory Prepayments, Percent of Net Cash Proceeds of Debt

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- Definition

Debt Instrument, Prepayment Premium

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- Definition

Debt Instrument, Quarterly Repayments of Principle, Percentage

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- Definition

Debt Instrument, Variable Rate Basis, Minimum Percentage

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- Definition

Interest Paid Or Payable, Related Parties

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- Definition

Line Of Credit Facility, Accordion Feature, Covenant, Leverage Ratio, Junior Basis, Maximum

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- Definition

Line Of Credit Facility, Accordion Feature, Covenant, Leverage Ratio, Pari Passu Basis, Maximum

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- Definition

Line Of Credit Facility, Accordion Feature, Increase Limit

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- Definition

Line of Credit Facility, Commitment Fee, Covenant, Threshold Leverage Ratio

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- Definition

Line of Credit Facility, Issuance, Percentage Of Par

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- Definition

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

+ References

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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- Definition

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

+ References

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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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- 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

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 10
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- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

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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.

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