Software Development Costs (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Software Development Costs
Software development costs	$ 21,851		$ 21,851		$ 15,278
Less: accumulated amortization	(8,559)		(8,559)		(7,030)
Software development costs, net	13,292		13,292		8,248
Capitalized software development costs included above not yet subject to amortization	4,865		4,865		$ 3,500
Amortization expense	$ 905	$ 445	$ 1,529	$ 1,131

The carrying amount of capitalized computer software costs not yet subject to amortization.

No definition available.

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- Definition

For each balance sheet presented, the amount of accumulated amortization for internally developed computer software for long-term internal use.

+ References

No definition available.

+ Details

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- Definition

Amount before accumulated amortization of capitalized costs for internally developed computer software for long-term internal use.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The carrying amount of costs for internally developed computer software for long-term internal use net of accumulated amortization as of the balance sheet date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of expense for amortization of capitalized computer software costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

+ Details

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Period Type:	duration

- References

No definition available.

+ Details

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