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Long-Term Debt Long-term Debt text (Details) $ in Thousands | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 15, 2015 Rate | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Jun. 05, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |
Unamortized Debt Issuance Expense |  | $ (17,781) | $ (18,500) |
Debt, Weighted Average Interest Rate |  | 3.71% |  |
Contractual Quarterly Payments |  | $ 2,100 |  |
Payments on Debt |  | $ 134,000 |  |
Leverage Ratio |  | 2.80 |  |
$825 Million Term B Loan Facility and $150 Million Revolving Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount |  |  |  | $ 975,000
$825 Million Term B Loan Facility, due June 2022 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount |  |  |  | 825,000
$150 Million Revolving Credit Facility, Due June 2020 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount |  |  |  | $ 150,000
Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Leverage Ratio |  | 4.25 |  |
Leverage Ratio in Latest Year of Debt Term |  | 3.25 |  |
Notes Payable to Banks [Member] | Minimum [Member] | $150 Million Revolving Credit Facility, Due June 2020 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | Rate | 0.75% |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | Rate | 0.25% |  |  |
Notes Payable to Banks [Member] | Maximum [Member] | $150 Million Revolving Credit Facility, Due June 2020 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | Rate | 2.50% |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | Rate | 0.40% |  |  |
Notes Payable to Banks [Member] | Maximum [Member] | Eurodollar [Member] | $825 Million Term B Loan Facility, due June 2022 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | Rate | 3.00% |  |  |
Revolving Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  | $ 112,500 |  |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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