Equity Method Investments (Details) - USD ($) $ in Thousands		3 Months Ended
Feb. 10, 2020	Mar. 31, 2020	Mar. 31, 2019
Equity Method Investments
Balance at beginning of period		$ 0	$ 163,181
Contributions		35	1,828
Distributions		0	(4,729)
Earnings (loss) on equity method investments		(59)	3,684
Sale of investment		24	0
Balance at end of period		0	163,964
Constitution
Equity Method Investments
Balance at beginning of period		0	0
Contributions		35	250
Distributions		0	0
Earnings (loss) on equity method investments		(35)	(250)
Sale of investment		0	0
Balance at end of period		0	0
Ownership percentage	25.00%
Reclassification adjustment for equity method investment	$ 9,400
Meade
Equity Method Investments
Balance at beginning of period		0	163,181
Contributions		0	1,578
Distributions		0	(4,729)
Earnings (loss) on equity method investments		(24)	3,934
Sale of investment		24	0
Balance at end of period		$ 0	$ 163,964

Equity Method Investments [Roll Forward]

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Other Comprehensive Income (Loss), Reclassification Adjustment, Equity Method Investments

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Proceeds From Equity Method Investments, Distributions (Including Return Of Capital)

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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