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Long-Term Debt (Details Textual) |  | 9 Months Ended |
--- | --- | --- | ---
Oct. 20, 2017 USD ($) Installment | Sep. 30, 2017 USD ($) | Dec. 31, 2016 USD ($)
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 172,821,000 | $ 183,442,000
Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit |  | $ 27,000,000 | $ 30,000,000
Former Credit Agreement [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, Interest rate terms |  | Borrowings under the Former Credit Agreement bore interest, at the Company’s option, at either (1) the highest of the federal funds rate plus 0.50%, the Eurodollar rate for a one-month interest period plus 1.00%, or the administrative agent’s prime rate as announced from time to time, or (2) the Eurodollar rate for the applicable interest period, plus in each case, an applicable margin based on the Company’s leverage ratio. |
Debt, Weighted Average Interest Rate |  | 3.50% |
Former Credit Agreement [Member] | Federal Funds Effective Swap Rate [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 0.50% |
Former Credit Agreement [Member] | Eurodollar [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 1.00% |
Former Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 50,000,000 |
Line of Credit |  | $ 27,000,000 |
Line of Credit Facility, Expiration Date |  | Jul. 31, 2020 |
Former Credit Agreement [Member] | Term Loan [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Face Amount |  | $ 160,000,000 |
Long-term Debt |  | $ 141,000,000 |
Debt Instrument, Maturity Date |  | Jul. 31, 2020 |
Senior Secured First Lien Credit Facility [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Face Amount | $ 900,000,000 |  |
Senior Secured First Lien Credit Facility [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 100,000,000 |  |
Line of Credit Facility, Expiration Date | Oct. 20, 2022 |  |
Senior Secured First Lien Credit Facility [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Borrowings as Percentage of Revolving Commitment to Contain Financial Covenant Regarding Maximum Net Leverage Ratio | 30.00% |  |
Senior Secured First Lien Credit Facility [Member] | Revolving Credit Facility [Member] | LIBOR rate [Member] | Subsequent Event [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.50% |  |
Senior Secured First Lien Credit Facility [Member] | Revolving Credit Facility [Member] | LIBOR rate [Member] | Subsequent Event [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 3.00% |  |
Senior Secured First Lien Credit Facility [Member] | Revolving Credit Facility [Member] | Base Rate Loans [Member] | Subsequent Event [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.50% |  |
Senior Secured First Lien Credit Facility [Member] | Revolving Credit Facility [Member] | Base Rate Loans [Member] | Subsequent Event [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.00% |  |
Senior Secured First Lien Credit Facility [Member] | Term Loan [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Face Amount | $ 800,000,000 |  |
Debt Instrument, Maturity Date | Oct. 20, 2024 |  |
Debt Instrument, Number of Quarterly Payments | Installment | 27 |  |
Debt Instrument, Periodic Payment | $ 2,000,000 |  |
Debt Instrument, Commencement Date of Quarterly Payments | Mar. 31, 2018 |  |
Debt Instrument, Final Installment | $ 746,000,000 |  |
Senior Secured First Lien Credit Facility [Member] | Term Loan [Member] | LIBOR rate [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 3.00% |  |
Senior Secured First Lien Credit Facility [Member] | Term Loan [Member] | Base Rate Loans [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.00% |  |
Senior Secured Second Lien Credit Facility [Member] | Term Loan [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Face Amount | $ 200,000,000 |  |
Debt Instrument, Maturity Date | Oct. 20, 2025 |  |
Senior Secured Second Lien Credit Facility [Member] | Term Loan [Member] | LIBOR rate [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 7.00% |  |
Senior Secured Second Lien Credit Facility [Member] | Term Loan [Member] | Base Rate Loans [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 6.00% |  |
Credit Facilities [Member] | Subsequent Event [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Beneficial Ownership Threshold | 50.00% |  |
Credit Facilities [Member] | Federal Funds Effective Swap Rate [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |  |
Credit Facilities [Member] | LIBOR rate [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |  |
Credit Facilities [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Base Floor Rate | 1.00% |  |
Credit Facilities [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.375% |  |
Credit Facilities [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.50% |  |
Credit Facilities [Member] | Term Loan [Member] | Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Base Floor Rate | 1.75% |  |
Debt Instrument, LIBOR Floor Rate | 0.75% |  |

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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 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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. + 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(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + 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 + Details
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