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Debt (Details Textual) (USD $)
|
3 Months Ended |
0 Months Ended |
12 Months Ended |
0 Months Ended |
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|
Mar. 31, 2015
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Mar. 31, 2014
|
Mar. 20, 2013
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Dec. 31, 2013
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Nov. 15, 2013
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Apr. 02, 2014
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Oct. 23, 2014
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Dec. 31, 2014
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| Debt [Line Items] |
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|
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| Long-term Line of Credit, Noncurrent |
$ 19,602,000 |
|
|
|
|
|
|
$ 0 |
| Interest Paid |
367,000 |
334,000 |
|
|
|
|
|
|
| Letters of Credit Outstanding, Amount |
4,803,000 |
|
|
|
|
|
|
|
| Accounts Payable, Total |
40,044,000 |
|
|
|
|
|
|
72,147,000 |
| 6.75% Notes |
|
|
|
|
|
|
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| Debt [Line Items] |
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|
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| Debt Instrument, Face Amount |
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|
550,000 |
|
|
|
|
|
| Debt instrument, stated interest rate |
6.75% |
|
6.75% |
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|
|
|
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| Debt Instrument, Maturity Year |
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|
2020 |
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|
|
|
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| Debt Instrument, Maturity Date |
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|
Apr. 01, 2020 |
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|
|
|
|
| Proceeds from Offering |
|
|
537,600,000 |
|
|
|
|
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| Debt Instrument, Redemption Date, One |
Apr. 01, 2016 |
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|
|
|
|
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| Debt Instrument, Redemption Date, Two |
Apr. 01, 2017 |
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|
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|
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| Debt Instrument, Redemption Date, Latest For Redemption At Face Amount |
Apr. 01, 2018 |
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|
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|
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| Debt Instrument, Percentage Of Redemption Price, Redemption Date One |
103.375% |
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|
|
|
|
|
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| Debt Instrument, Percentage Of Redemption Price, Redemption Date Two |
101.688% |
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|
|
|
|
|
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| Debt Instrument, Percentage Of Redemption Price, Redemption Date, Latest For Redemption At Face Amount |
100.00% |
|
|
|
|
|
|
|
| Debt Instrument, Percentage Redeemable Redemption Date, Additional |
106.75% |
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|
|
|
|
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| Debt Instrument, Percentage Of Redemption Price Redemption Date, Additional |
35.00% |
|
|
|
|
|
|
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| Debt Instrument, Percentage Of Redemption Price, Change In Ownership Control |
101.00% |
|
|
|
|
|
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|
| 11% Notes |
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|
|
|
|
|
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| Debt [Line Items] |
|
|
|
|
|
|
|
|
| Debt instrument, stated interest rate |
|
|
11.00% |
|
|
|
|
|
| Loss on redemption of notes |
|
|
|
55,588,000 |
|
|
|
|
| 6.75% Notes issued in November 2013 |
|
|
|
|
|
|
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| Debt [Line Items] |
|
|
|
|
|
|
|
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| Debt instrument, stated interest rate |
|
|
|
|
6.75% |
|
|
|
| Additional borrowing face amount |
|
|
|
|
110,000,000 |
|
|
|
| Proceeds from Offering |
|
|
|
|
111,925,000 |
|
|
|
| Debt Instrument, Unamortized Premium |
|
|
|
|
4,125,000 |
|
|
|
| Expense Related to Distribution or Servicing and Underwriting Fees |
|
|
|
|
2,200,000 |
|
|
|
| 6.75% Notes Issued in April 2014 |
|
|
|
|
|
|
|
|
| Debt [Line Items] |
|
|
|
|
|
|
|
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| Debt instrument, stated interest rate |
|
|
|
|
|
6.75% |
|
|
| Additional borrowing face amount |
|
|
|
|
|
75,000,000 |
|
|
| Proceeds from Offering |
|
|
|
|
|
77,452,000 |
|
|
| Debt Instrument, Unamortized Premium |
|
|
|
|
|
3,938,000 |
|
|
| Expense Related to Distribution or Servicing and Underwriting Fees |
|
|
|
|
|
1,500,000 |
|
|
| Wells Fargo Capital Finance, LLC |
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|
|
|
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|
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| Debt [Line Items] |
|
|
|
|
|
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| Line of Credit Facility, Increase (Decrease), Net |
|
|
|
|
|
|
100,000,000 |
|
| Long-term Line of Credit |
|
|
225,000,000 |
|
|
|
|
|
| Debt Instrument, Maturity Date |
|
|
|
|
|
|
Sep. 30, 2019 |
|
| Debt Instrument, Face Amount |
|
|
|
|
|
|
$ 325,000,000 |
|
| Line of Credit Facility, Description |
|
|
Dec. 31, 2018 |
|
|
|
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| Wells Fargo Capital Finance, LLC | Base Rate |
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| Debt [Line Items] |
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|
|
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| Debt instrument, stated interest rate |
1.00% |
|
|
|
|
|
1.00% |
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| Wells Fargo Capital Finance, LLC | London Interbank Offered Rate (LIBOR) |
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| Debt [Line Items] |
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| Debt instrument, stated interest rate |
1.75% |
|
|
|
|
|
1.75% |
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