Represents the denomination of the principal amount of debt that is used in conversion calculations.

No definition available.

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

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- Definition

Cumulative amount paid into a fund, which is used to retire the debt instrument.

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- Definition

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

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- Definition

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

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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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No definition available.

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- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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LONG-TERM DEBT - Convertible Notes (Details)					3 Months Ended		9 Months Ended
LONG-TERM DEBT - Convertible Notes (Details)	Apr. 15, 2020 USD ($) $ / shares	Mar. 15, 2020 USD ($) $ / shares	Feb. 04, 2020 USD ($)	Jan. 29, 2020 $ / shares	Sep. 30, 2020 USD ($) $ / shares	Sep. 30, 2019 $ / shares	Sep. 30, 2020 USD ($) $ / shares	Sep. 30, 2019 $ / shares	Dec. 31, 2019 USD ($)	Apr. 30, 2016 USD ($)
Long-term debt
Outstanding Principal					$ 284,675,779		$ 284,675,779			$ 25,000,000.0
Dividends Declared and Paid (in dollars per share) \| $ / shares					$ 0.40	$ 0.11	$ 0.90	$ 0.31
Closing share price (in dollars per share) \| $ / shares					$ 15.55		$ 15.55
Unamortized debt discount of notes					$ 6,484,514		$ 6,484,514
Gain (Loss) on Extinguishment of Debt							$ 1,141,481
4.50% Convertible Senior Notes due 2020
Long-term debt
Outstanding Principal		$ 75,000,000.0	$ 75,000,000.0
Debt conversion amount			57,400,000
Interest rate (as a percent)		4.50%			4.50%		4.50%
Debt instrument conversion ratio		14.5136
Conversion price per share (in dollars per share) \| $ / shares		$ 68.90
Proceeds from private placement			5,900,000
Repurchase of notes			5,900,000
Outstanding amount			11,700,000						$ 74,706,078
3.875% Convertible Senior Notes due 2025
Long-term debt
Outstanding Principal			17,600,000		$ 62,468,000		$ 62,468,000
Debt conversion amount			$ 57,400,000
Interest rate (as a percent)			3.875%		3.875%		3.875%
Conversion price per share (in dollars per share) \| $ / shares					$ 77.29		$ 77.29
Proceeds from private placement			$ 11,700,000
Outstanding amount			$ 75,000,000.0		$ 55,983,486		$ 55,983,486
2025 Notes maturing on April 15, 2025
Long-term debt
Interest rate (as a percent)	3.875%
Debt instrument conversion ratio	12.7910				12.9383
Conversion price per share (in dollars per share) \| $ / shares	$ 78.18				$ 77.29		$ 77.29
Threshold principal amount for adjusted conversion price	$ 1,000
Dividends Declared and Paid (in dollars per share) \| $ / shares	$ 0.13
Premium initial conversion price				20.00%
Closing share price (in dollars per share) \| $ / shares				$ 65.15
Sinking fund provided					$ 0		$ 0
Unamortized debt discount of notes					2,600,000		2,600,000
Repurchase of notes					12,500,000		12,500,000
Convertible Debt
Long-term debt
Unamortized debt discount of notes					6,500,000		6,500,000
Convertible Debt \| 3.875% Convertible Senior Notes due 2025
Long-term debt
Outstanding Principal					$ 62,500,000		$ 62,500,000