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.

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319

+ Details

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Balance Type:	credit
Period Type:	instant

- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

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Schedule I Financial Information (As Restated) Schedule I Financial Information - Additional Information (Details) - USD ($)	Dec. 31, 2016	Aug. 04, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Valuation allowance	$ 346,199,000		$ 2,999,000	$ 3,096,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Aggregate borrowing capacity	100,000,000.0	$ 125,000,000.0
Remaining availability after reductions for issued letters of credit	12,200,000
Restatement Adjustments [Member] \| Deferred Tax Asset Valuation Allowance Adjustments [Member]
Debt Instrument [Line Items]
Valuation allowance	304,700,000
Parent Company [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Aggregate borrowing capacity	100,000,000
Remaining availability after reductions for issued letters of credit	12,200,000
Parent Company [Member] \| Restatement Adjustments [Member] \| Deferred Tax Asset Valuation Allowance Adjustments [Member]
Debt Instrument [Line Items]
Valuation allowance	$ 27,300,000